Wikipedia:WikiProject Mathematics/List of mathematicians (R)

Raa

 * Raabe, Joseph Ludwig (Switzerland, 1801–1859)
 * Rabin, Michael O. (Israel, born 1931)
 * Rabin, Tal (Faridabad, ?–?)
 * Rabinovich, Evsei (Russia/Soviet Union, ?–?)
 * Rabinovich, Matvei (Russia/Soviet Union, 1919–1982)
 * Rabinovitch, Nahum (?, 1928–2020)
 * Rabinowitz, Paul (USA, born 1939)
 * Rabinowitz, Philip (USA, 1926–2006)
 * Rabuel, Claude (France, 1669–1729)
 * Racah, Giulio (Israel, 1909–1965)
 * Rachev, Svetlozar (Bulgaria, born 1951)
 * Radau, Rodolphe (Germany, 1835–1911)
 * Rademacher, Hans (USA/Germany, 1892–1969)
 * Radford, Luis (Aligarh U.P, ?–?)
 * Radhakrishnan, Jaikumar (India, born 1964)
 * Radin, Charles (USA, ?–?)
 * Rado, Richard (Germany/Britain, 1906–1989)
 * Radó, Tibor (USA, 1895–1965)
 * Radon, Johann (Austria, 1887–1956)
 * Rados, Gusztáv (Hungary, 1862–1942)
 * Rådström, Hans (Sweden, 1919–1970)
 * Radunskaya, Ami (?, ?–?)
 * Radziszowski, Stanisław (Poland, born 1953)
 * Radziwill, Maksym (Canada, ?–?)
 * Rafique, Muhammad (mathematician) (Pakistan, 1940–1996)
 * Raftery, Adrian (Ireland/USA, born 1955)
 * Raghavan, Prabhakar (India, born 1960)
 * Raghavan, Srinivasacharya (India, 1934–2014)
 * Raghunathan, M. S. (India, born 1941)
 * Ragsdale, Virginia (?, 1870–1945)

Rah

 * Rahman, Mizan (Canada, 1932–2015)
 * Rahman, Saidur (professor) (?, born 1966)
 * Rahn, Johann (Switzerland, 1622–1676)
 * Rains, Eric M. (?, born 1973)
 * Rainville, Earl D. (USA, 1907–1966)
 * Rainwater, John (USA, ?–?)
 * Rajagopal, Cadambathur Tiruvenkatacharlu (India, 1903–1978)
 * Rajaram, N. S. (India, 1943–2019)
 * Rajchman, Aleksander (Poland, 1890–1940)
 * Rajewski, Jan (Poland, 1857–1906)
 * Ralescu, Stefan (USA, born 1952)
 * Rallis, Stephen (?, 1942–2012)
 * Ramachandra, Kanakanahalli (India, 1933–2011)
 * Ramadas, T. R. (India, born 1955)
 * Ramanan, Kavita (India, ?–?)
 * Ramanan, S. (India, born 1937)
 * Ramanathan, Annamalai (India, 1949–1993)
 * Ramanathan, K. G. (India, 1920–1992)
 * Ramanujam, C. P. (India, 1938–1974)
 * Ramanujan, Srinivasa (India, 1887–1920)
 * Ramaré, Olivier (France, ?–?)
 * Ramaswamy, Mythily (India, born 1954)
 * Rambo, Susan Miller (USA, 1883–1977)
 * Ramchundra (India, 1821–1880)
 * Ramdorai, Sujatha (India, ?–?)
 * Ramero, Lorenzo (Italy/France, ?–?)
 * Ramis, Jean-Pierre (?, born 1943)
 * Ramler, Saly Ruth (Czech Republic, ?–?)
 * Ramm, Alexander (USA, born 1940)
 * Rampinelli, Ramiro (Italy, 1697–1759)
 * Ramsden, Jesse (England, 1735–1800)
 * Ramsey, Arthur Stanley (Britain, 1867–1954)
 * Ramsey, Frank (mathematician) (?, 1903–1930)
 * Ramus, Petrus (France, 1515–1572)

Ran

 * Randal-Williams, Oscar (Britain, ?–?)
 * von Randow, Thomas (Germany, 1921–2009)
 * Ranganathan, S. R. (India, 1892–1972)
 * Ranicki, Andrew (?, 1948–2018)
 * Rankin, Robert Alexander (Scotland, 1915–2001)
 * Rannacher, Rolf (?, born 1948)
 * Ransford, Thomas (Canada, born 1958)
 * Rao, A. R. (India, 1908–2011)
 * Rao, B. L. S. Prakasa (India, born 1942)
 * Rao, C. R. (USA/India, 1920–2023)
 * Rao, R. Ramachandra (India, 1871–1936)
 * Rao, R. Ranga (India, ?–?)
 * Rao, S. B. (?, born 1943)
 * Raoult, Annie (France, born 1951)
 * Raper, Matthew (Britain, 1705–1778)
 * Raphson, Joseph (England, 1640s–1710s)
 * Rapoport, Michael (Germany, born 1948)
 * Rasch, Georg (Denmark, 1901–1980)
 * Rashed, Roshdi (Egypt, born 1936)
 * Rashevsky, Nicolas (Ukraine, 1899–1972)
 * Rashid, Muneer Ahmad (Pakistan, born 1934)
 * Rasiowa, Helena (Poland, 1917–1994)
 * Rassias, Themistocles M. (Greece, born 1951)
 * Ratiu, Tudor (Romania, born 1950)
 * Ratner, Marina (USA, 1938–2017)
 * Ratner, Yitzchak (?, born 1857)
 * Rátz, László (Hungary, 1863–1930)
 * Rau, K. Ananda (India, 1893–1966)
 * Rauch, Harry (USA, 1925–1979)
 * Raupp, Marco Antonio (Brazil, 1938–2021)
 * Rautenberg, Wolfgang (Germany, 1936–2011)

Rav

 * Raven, Francis (?, 1902–1983)
 * Ravenel, Douglas (USA, born 1947)
 * Ravetz, Jerome (USA/Britain, born 1929)
 * Ravindran, Renuka (India, ?–?)
 * Ray-Chaudhuri, Dijen K. (USA, born 1933)
 * Ray, Saradaranjan (?, 1858–1925)
 * Ray, W. Harmon (?, born 1940)
 * Raybould, Ethel (Australia, 1899–1987)
 * Raynaud, Michel (France, 1938–2018)
 * Raynaud, Michèle (?, born 1938)
 * Rayner, Margaret (Britain, 1929–2019)
 * Razborov, Alexander (Russia/Soviet Union, born 1963)
 * Razgulin, Alexander (Russia, ?–?)
 * Razmadze, Andrea (Georgia, 1889–1929)
 * Read, Charles (Britain, 1958–2015)
 * Read, Ronald C. (?, 1924–2019)
 * Reason, Charles L. (USA, 1818–1893)
 * Rebstein, Johann Jakob (Switzerland, 1840–1907)
 * Recorde, Robert (Wales, 1510s–1558)
 * Rédei, László (Hungary, 1900–1980)
 * Redfield, John Howard (USA, 1879–1944)
 * Redheffer, Raymond (USA, 1921–2005)
 * Redner, Sidney (?, born 1951)
 * Ree, Rimhak (Canada, 1922–2005)
 * Reeb, Georges (France, 1920–1993)
 * Reed, Bruce (Canada, ?–?)
 * Reed, Coke (USA, born 1940)
 * Reed, G. Mike (USA, ?–?)
 * Reed, Irving S. (USA, 1923–2012)
 * Reed, Michael C. (USA, born 1942)
 * Rees, David (Britain, 1918–2013)
 * Rees, Elmer (Wales, born 1941)
 * Rees, Mary (Britain, born 1953)
 * Rees, Mina (USA, 1902–1997)

Ref

 * reference, Wholistic (Britain, ?–?)
 * Regev, Amitai (Israel, born 1940)
 * Regev, Oded (computer scientist) (Israel/USA, ?–?)
 * Reghini, Arturo (Italy, 1878–1946)
 * Regiomontanus (Medieval Germany, 1436–1476)
 * Reich, Karin (?, born 1941)
 * Reichelt, Julius (Germany, 1637–1717)
 * Reichental, Tomi (Slovakia, born 1935)
 * Reichstein, Zinovy (USA, born 1961)
 * Reid, K. B. (?, ?–?)
 * Reid, Miles (England, born 1948)
 * Reid, Nancy (Canada, born 1952)
 * Reid, Thomas (Scotland, 1710–1796)
 * Reidemeister, Kurt (Germany, 1893–1971)
 * Reiersøl, Olav (Norway, 1908–2001)
 * Reiher, Christian (Germany, born 1984)
 * Reimers, Nicolaus (Germany, 1551–1600)
 * Reinach, Théodore (France, 1860–1928)
 * Reiner, Irving (USA, 1924–1986)
 * Reinert, Gesine (Britain/Germany, ?–?)
 * Reinhardt, Karl (Germany, 1895–1941)
 * Reinhart, Anna Barbara (Switzerland, 1730–1796)
 * Reinhold, Erasmus (Germany, 1511–1553)
 * Reinieri, Vincentio (Italy, 1606–1647)
 * Reiss, Kristina (Germany, born 1952)
 * Reiss, Michel (Germany, 1805–1869)
 * Reissner, Eric (USA/Germany, 1913–1996)
 * Reiten, Idun (Norway, born 1942)
 * Reiter, Hans J. (Austria, 1921–1992)
 * Reiziņš, Linards (Latvia, 1924–1991)

Rej

 * Rejewski, Marian (Poland, 1905–1980)
 * Rellich, Franz (Austria, 1906–1955)
 * Remak, Robert (Germany, 1888–1942)
 * Remez, Evgeny Yakovlevich (Soviet Union, 1896–1975)
 * Rémillard, Bruno N (Canada, born 1961)
 * Remmert, Reinhold (Germany, 1930–2016)
 * Remoundos, Georgios (Greece, 1878–1928)
 * Rempala, Grzegorz (Poland, born 1968)
 * Rempe-Gillen, Lasse (Germany, born 1978)
 * Renardy, Yuriko (Australia/USA, ?–?)
 * Renchen, Wu (China, ?–?)
 * Renegar, James (?, born 1955)
 * Rényi, Alfréd (Hungary, 1921–1970)
 * Repovš, Dušan (Slovenia, born 1954)
 * Reshetikhin, Nicolai (Russia, born 1958)
 * Reshetnyak, Yurii (Russia/Soviet Union, 1929–2021)
 * Resnik, Michael (USA, born 1938)
 * Respighi, Lorenzo (?, 1824–1889)
 * Retakh, Vladimir (Russia/USA, born 1948)
 * Réthy, Mór (?, 1846–1925)
 * Revelli, Filippo Antonio (Italy, born 1716)
 * Revuz, Daniel (France, ?–?)
 * Rey, Olivier (?, born 1964)
 * Reye, Theodor (Germany, 1838–1919)
 * Reynaud, Antoine André Louis (France, 1771–1844)
 * Reys, Barbara (?, ?–?)
 * Rezk, Charles (?, born 1969)
 * Reznick, Bruce (?, born 1953)
 * de Rham, Georges (Switzerland, 1903–1990)
 * Rheticus, Georg Joachim (Austria, 1514–1574)

Rho

 * Rhodes, Ida (USA, 1900–1986)
 * Rhodes, John (USA, born 1937)
 * Riazi, Abdollah (Iran, 1905–1979)
 * Ribeiro, Pilar (Portugal, 1911–2011)
 * Ribenboim, Paulo (Brazil/Canada, born 1928)
 * Ribet, Ken (?, born 1948)
 * Ricca, Renzo L. (Italy, born 1960)
 * Riccardo, Fortunato (?, ?–?)
 * Riccati, Jacopo (Italy, 1676–1754)
 * Riccati, Vincenzo (Italy, 1707–1775)
 * Ricci-Curbastro, Gregorio (Italy, 1853–1925)
 * Ricci, Francesco (?, ?–?)
 * Ricci, Michelangelo (Italy, 1619–1682)
 * Ricci, Ostilio (Italy, 1540–1603)
 * Rice-Wray, Lester R. (USA, ?–?)
 * Rice, Henry Gordon (USA, 1920–2003)
 * Rice, John R. (USA, born 1934)
 * Rice, Marjorie (USA, 1923–2017)
 * Richard of Wallingford (Medieval England, 1292–1336)
 * Richard, Jules (France, 1862–1956)
 * Richards, Joan L. (?, born 1948)
 * Richards, Paul I. (USA, 1923–1978)
 * Richardson, Archibald Read (Britain, 1881–1954)
 * Richardson, Lewis Fry (England, 1881–1953)
 * Richardson, Roger Wolcott (Australia, 1930–1993)
 * Richardson, Roland (Canada, 1875–1955)
 * Richardson, Sylvia (France, ?–?)
 * Richelot, Friedrich Julius (Germany, 1808–1875)
 * Richert, Hans-Egon (Germany, 1924–1993)
 * Richmond, Herbert William (England, 1863–1948)
 * Richtarik, Peter (Slovakia, ?–?)
 * Richter, Michael M. (Germany, 1938–2020)
 * Richtmyer, Robert D. (USA, 1910–2003)
 * Rickard, Jeremy (Britain, ?–?)
 * Rickart, Charles Earl (?, 1913–2002)
 * Rickey, V. Frederick (?, born 1941)

Rid

 * Rider, Daniel (?, 1938–2008)
 * Ridley, John (footballer) (?, 1952–2020)
 * Riedtmann, Christine (Switzerland, born 1952)
 * Rieger, Ladislav (Czech Republic, 1916–1963)
 * Riehl, Emily (USA, ?–?)
 * Rieke, Carol Jane Anger (?, 1908–1999)
 * te Riele, Herman (Netherlands, born 1947)
 * Riemann, Bernhard (Germany, 1826–1866)
 * Ries, Adam (Germany, 1492–1559)
 * Riesel, Hans (Sweden, 1929–2014)
 * Riesz, Frigyes (Hungary, 1880–1956)
 * Riesz, Marcel (Sweden, 1886–1969)
 * Rietz, Henry Louis (USA, 1875–1943)
 * Rigatelli, Laura Toti (Italy, born 1941)
 * Rigby, John (mathematician) (England, 1933–2014)
 * Riguet, Jacques (?, 1921–2013)
 * Rijmen, Vincent (?, born 1970)
 * Riley, Norman (England, ?–?)
 * Riley, Norman (professor) (England, ?–?)
 * Riley, Rachel (England, born 1986)
 * Riley, Robert (mathematician) (?, ?–2000)
 * Ringel, Gerhard (Germany, 1919–2008)
 * van Ringelbergh, Joachim Sterck (?, 1490s–1530s)
 * Ringrose, John Robert (England, born 1932)
 * Rinow, Willi (Germany, 1907–1979)
 * Riordan, John (mathematician) (?, 1902–1988)
 * Rios, Luigi Sante Da (Italy, 1881–1965)
 * Ríos, Sixto (Spain, 1913–2008)
 * Rips, Eliyahu (Israel/Latvia/Soviet Union, born 1948)
 * Risch, Robert Henry (USA, born 1939)
 * Rissanen, Jorma (Finland, 1932–2020)

Rit

 * Ritchie, Ken (Scotland, born 1946)
 * Ritter, Imre (Hungary, born 1952)
 * Rival, Ivan (Canada, 1947–2002)
 * Rivault, Florence (?, 1571–1616)
 * Rivière, Beatrice (France, ?–?)
 * Rivière, Tristan (France, born 1967)
 * Rivin, Igor (Canada, born 1961)
 * Rivlin, Ronald (?, 1915–2005)
 * Rivlin, Theodore J. (?, 1926–2006)
 * Rizza, Giovanni Battista (Italy, 1924–2018)
 * Robb, Richard (Scotland, 1901–1977)
 * Robbins, David P. (USA, 1942–2003)
 * Robbins, Herbert (USA, 1915–2001)
 * Robert Gordon of Straloch (Scotland, 1580–1661)
 * Robert of Chester (Medieval England, ?–?)
 * Robert Russell (Ireland, 1858–1938)
 * Robert, Alain M. (Switzerland, ?–?)
 * Robert, Christian (France, born 1961)
 * Roberts, Catherine A. (USA, born 1965)
 * Roberts, Fred S. (USA, born 1943)
 * Roberts, Rachel (mathematician) (?, ?–?)
 * Roberts, Samuel (Britain, 1827–1913)
 * Roberts, Siobhan (?, ?–?)
 * Robertson, Abraham (Scotland, 1751–1826)
 * Robertson, Alexander Provan (Britain, 1925–1995)
 * Robertson, Edmund F. (Scotland, born 1943)
 * Robertson, Howard P. (USA, 1903–1961)
 * Robertson, John (mathematician) (England, 1712–1776)
 * Robertson, Neil (?, born 1938)
 * de Roberval, Gilles (France, 1602–1675)
 * Robin, Victor Gustave (France, 1855–1897)
 * Robins, Benjamin (Britain, 1707–1751)
 * Robins, Vanessa (Australia, ?–?)
 * Robinson, Abraham (Germany, 1918–1974)
 * Robinson, Claude E. (USA, 1900–1961)
 * Robinson, John Alan (Britain, 1930–2016)
 * Robinson, Julia (USA, 1919–1985)
 * Robinson, Margaret M. (USA, ?–?)
 * Robinson, Raphael M. (USA, 1911–1995)
 * Robson, Eleanor (?, ?–?)

Roc

 * Rocco, Sandra Di (Italy/Sweden, born 1967)
 * Roch, Gustav (Germany, 1839–1866)
 * Rocha, Alvany (?, ?–?)
 * Roche, Édouard (France, 1820–1883)
 * Rock, Sibyl M. (USA, 1909–1981)
 * Rockafellar, R. Tyrrell (USA, born 1935)
 * Röckner, Michael (Germany, ?–?)
 * Rodborne, Thomas (England, ?–1442)
 * Rödding, Dieter (Germany, 1937–1984)
 * Rodin, Burton (USA, born 1933)
 * Rödl, Vojtěch (Czech Republic, ?–?)
 * Rodnianski, Igor (Ukraine, born 1972)
 * Rodrigues, Olinde (France, 1795–1851)
 * Rodríguez-López, Rosana (Spain, ?–?)
 * Rodríguez, Diego (Mexico, 1596–1668)
 * Rodríguez, Ricardo Baeza (Chile, ?–?)
 * Rodríguez, Rubí (Chile, ?–?)
 * Rodríguez, Sotero Prieto (Mexico, 1884–1935)
 * Roe, John (Britain, 1959–2018)
 * Roger of Hereford (?, ?–?)
 * Rogers Jr., Hartley (USA, 1926–2015)
 * Rogers, Alice (England, ?–?)
 * Rogers, Chris (England, born 1954)
 * Rogers, Claude Ambrose (England, 1920–2005)
 * Rogers, Leonard James (England/Britain, 1862–1933)
 * Roggenkamp, Klaus Wilhelm (?, 1940–2021)
 * Rognes, John (mathematician) (Norway, ?–?)
 * Rognes, Marie (Norway, born 1982)
 * Rogosinski, Werner Wolfgang (Germany, 1894–1964)
 * Rohault, Jacques (France, 1618–1672)
 * Rohn, Karl (Germany, 1855–1920)
 * Röhrl, Helmut (Germany, 1927–2014)

Roi

 * Roig, Juan José Nieto (Spain, born 1958)
 * Roiter, Andrei Vladimirovich (?, 1937–2006)
 * Roitman, Judith (USA, born 1945)
 * Rokhlin Jr., Vladimir (Russia, born 1952)
 * Rokhlin, Vladimir Abramovich (Soviet Union/Russia, 1919–1984)
 * Rolle, Michel (France, 1652–1719)
 * Roman, Steven (USA, ?–?)
 * Romanovsky, Vsevolod Ivanovich (Soviet Union, 1879–1954)
 * Romanowska, Anna (Poland, ?–?)
 * Romberg, Werner (?, 1909–2003)
 * Ronan, Mark (Britain, born 1947)
 * Roney-Dougal, Colva (Britain, ?–?)
 * Rongqing, Jia (China, ?–?)
 * Rönström, Anna (Sweden, 1847–1920)
 * Rooke, Lawrence (England, 1622–1662)
 * Room, Thomas Gerald (Australia, 1902–1986)
 * van Roomen, Adriaan (Belgium, 1561–1615)
 * Roos, Jan-Erik (?, 1935–2017)
 * Rootzén, Holger (Sweden, born 1945)
 * Roper, Elmo (?, 1900–1971)
 * Roque, Marian P. (Philippines, ?–?)
 * Roquette, Peter (Germany, 1927–2023)
 * Rørdam, Mikael (Denmark, born 1959)
 * Ros-Oton, Xavier (Spain, born 1988)
 * Rosamond, Frances A. (Australia, ?–?)
 * Rosanes, Jakob (Germany/Poland, 1842–1922)
 * Rosati, Carlo (Italy, 1876–1929)
 * Rosellini, Ferdinando Pio (?, 1814–1872)
 * Rosen, Michael (USA, born 1938)
 * Rosenau, Philip (Israel, born 1946)
 * Rosenberg, Alex F. T. W. (Germany, 1926–2007)
 * Rosenberg, Harold (USA, born 1941)
 * Rosenberg, Jonathan (USA, born 1951)
 * Rosenblatt, Murray (USA, 1926–2019)
 * Rosenbloom, Paul C. (USA, 1920–2005)
 * Rosenblum, Lawrence J. (USA, born 1949)
 * Rosenhain, Johann Georg (Germany, 1816–1887)
 * Rosenhead, Jonathan (Britain, born 1938)
 * Rosenhead, Louis (?, 1906–1984)
 * Rosenhouse, Jason (USA, ?–?)
 * Rosenlicht, Maxwell (USA, 1924–1999)
 * Rosenstiehl, Pierre (France, 1933–2020)
 * Rosenthal, Arthur (Germany, 1887–1959)
 * Rösler, Margit (Germany, ?–?)
 * Ross, Arnold (USA, 1906–2002)
 * Ross, I. Michael (USA, ?–?)
 * Ross, Kenneth A. (USA, born 1936)
 * Ross, Mary G. (?, 1908–2008)
 * Ross, Ronald (Britain, 1857–1932)
 * Ross, Sheldon M. (?, ?–?)
 * Rossander, Alida (Sweden, 1843–1909)
 * Rossander, Jenny (Sweden, 1837–1887)
 * Rosser, J. Barkley (USA, 1907–1989)
 * Rossi, Hugo (USA, born 1935)
 * Rössler, Otto (?, born 1940)
 * Rost, Markus (Germany, ?–?)

Rot

 * Rota, Gian-Carlo (USA, 1932–1999)
 * Roter, Witold (Poland, 1932–2015)
 * Roth, Alice (Switzerland, 1905–1977)
 * Roth, Klaus (Britain, 1925–2015)
 * Roth, Leonard (England, 1904–1968)
 * Rothblum, Uriel (Israel, 1947–2012)
 * Rothe, Heinrich August (Germany, 1773–1842)
 * Rothe, Hermann (Austria, 1882–1923)
 * Rothschild, Bruce Lee (USA, born 1941)
 * Rothschild, Linda Preiss (?, born 1945)
 * Rotkowitz, Michael (USA, born 1974)
 * Rotman, Brian (Britain, ?–?)
 * Rotman, Joseph J. (USA, 1934–2016)
 * Rotthaus, Christel (?, ?–?)
 * Roubaud, Jacques (France, born 1932)
 * Rouché, Eugène (France, 1832–1910)
 * Roudenko, Svetlana (?, ?–?)
 * Rouquier, Raphaël (France, born 1969)
 * Rourke, Colin P. (Britain, born 1943)
 * Rousseau, Cecil C. (?, 1938–2020)
 * Rousseau, Christiane (France/Canada, born 1954)
 * Routh, Edward (Britain, 1831–1907)
 * Routledge, Norman (Britain, 1928–2013)
 * Rowbottom, Frederick (Britain, 1938–2009)
 * Rowe, David E. (?, born 1950)
 * Roy, Bernard (France, 1934–2017)
 * Le Roy, Édouard (France, 1870–1954)
 * Roy, Marie-Françoise (France, born 1950)
 * Roy, Samarendra Nath (India, 1906–1964)
 * Royen, Thomas (Germany, born 1947)
 * Royle, Gordon (Australia, ?–?)
 * de Royo, Adela Ruiz (Panama, ?–2019)

Roz

 * Rozanska, Julia (Russia, ?–?)
 * Rozenberg, Grzegorz (Poland, born 1942)
 * Rozovsky, Boris (USA, born 1945)
 * Różycki, Jerzy (Poland, 1909–1942)
 * Ruan, Da (China/Belgium, 1960–2011)
 * Rubel, Lee Albert (USA, 1928–1995)
 * Rubin, Arthur (USA, born 1956)
 * Rubin, Jean E. (?, 1926–2002)
 * Rubin, Karl (?, born 1956)
 * Rubin, Robert Joshua (USA, 1926–2008)
 * Rubinfeld, Ronitt (?, ?–?)
 * Rubinstein, J. Hyam (Australia, born 1948)
 * Rubinstein, Reuven (Israel, 1938–2012)
 * Rubugunday, R. K. (India, 1918–2000)
 * Ruby, Sandy (USA, 1941–2008)
 * Rudd, Thomas (Britain, 1583–1656)
 * Rudin, Mary Ellen (USA, 1924–2013)
 * Rudin, Walter (USA, 1921–2010)
 * Rudio, Ferdinand (Germany/Switzerland, 1856–1929)
 * Rudnick, Zeev (Israel, born 1961)
 * Rudolff, Christoph (Germany, 1499–1545)
 * Rudolph, Daniel (USA, 1949–2010)
 * Rudvalis, Arunas (USA, born 1945)
 * Rudyak, Yuli (?, ?–?)
 * Ruelle, David (Belgium, born 1935)
 * Ruffini, Paolo (Italy, 1765–1822)
 * Ruggles, William (USA, 1797–1877)
 * Ruh, Ernst (Switzerland, born 1936)
 * Rui, Li (China, 1768–1817)
 * de Ruiz, Kaye A. (?, ?–?)
 * Ruiz, Mari-Jo P. (Philippines, ?–?)

Rum

 * Rumbos, Adolfo (USA, ?–?)
 * al-Rūmī, Qāḍī Zāda (?, 1364–1436)
 * Rumovsky, Stepan (Russia, 1734–1812)
 * Rund, Hanno (?, 1925–1993)
 * Runge, Carl (?, 1856–1927)
 * Runge, Carl David Tolmé (Germany, 1856–1927)
 * Runge, Iris (Germany, 1888–1966)
 * Runnenburg, Johannes (Netherlands, 1932–2008)
 * Ruskai, Mary Beth (USA, born 1944)
 * Ruskey, Frank (Canada, ?–?)
 * Russell, Alexander Durie (Scotland, 1872–1955)
 * Russell, Bertrand (England, 1872–1970)
 * Russell, Craig L. (USA, born 1949)
 * Russell, Robert D. (Canada, ?–?)
 * Russman, Isaak (Soviet Union/Russia, 1938–2005)
 * Russo, Lucio (?, born 1944)
 * Ruszczyński, Andrzej Piotr (Poland, born 1951)
 * Rutherford, Daniel Edwin (Scotland, 1906–1966)
 * Rutherford, William (England, 1798–1871)
 * Rutishauser, Heinz (Switzerland, 1918–1970)
 * Ruziewicz, Stanisław (Poland, 1889–1941)
 * Ruzsa, Imre Z. (Hungary, born 1953)
 * Rvachev, Vladimir (?, 1926–2005)
 * Rweyemamu, Justinian (Tanzania, 1942–1982)
 * Ryan, Frank (USA, 1936–2024)
 * Ryan, John Alphonsus (Ireland, born 1952)
 * Rybczyński, Witold (Poland, 1881–1949)
 * Rychlík, Karel (Czech Republic, 1885–1968)
 * Ryff, Petrus (Switzerland, 1552–1629)
 * Ryll-Nardzewski, Czesław (Poland, 1926–2015)

Rys

 * Ryser, Herbert John (USA, 1923–1985)
 * Rytz, David (Switzerland, 1801–1868)