Konstantinov

Konstantinov (Константинов, Константинов also transliterated as Konstantinoff or Constantinoff) and Konstantinova (feminine; Константинова) is a common Slavic surname that is derived from the baptismal name Konstantin and literally means Konstantin's.

People with this surname include:
 * Male
 * Aleko Konstantinov (1863–1897), Bulgarian writer
 * Alexander Konstantinov (1895–1945), Soviet inventor and scientist in the field of radiophysics
 * Anatoly Konstantinov (1923–2006), Soviet aircraft pilot and Hero of the Soviet Union
 * Boris Konstantinov (1910–1969), Soviet physicist, academician, and Hero of Socialist Labor
 * Evgeny Konstantinov (born 1981), Russian ice hockey player
 * Fyodor Konstantinov (1901–?), Soviet philosopher and academician
 * Julian Konstantinov (born 1966), Bulgarian operatic bass
 * Konstantin Konstantinov (1817 or 1819–1871), Russian scientist in the field of artillery, rocketry, instrument making, and automatics
 * Kosev Dimitr Konstantinov (1904–1996), Bulgarian historian and academician
 * Kostia Konstantinoff (1903-1947), Russian composer and pianist
 * Mikhail Konstantinov (1900–1990), Soviet general
 * Minkov Svetoslav Konstantinov (1902–1966), Bulgarian writer
 * Nikolay Konstantinov (1932–2021), Russian mathematics educator
 * Plamen Konstantinov (born 1973), Bulgarian volleyball player
 * Pyotr Konstantinov (1899–?), Soviet actor and People's Artist of the USSR
 * Pyotr Konstantinov (1877–1959), Soviet plant-breeder, selectionist, and academician
 * Vitali Konstantinov (born 1963), German artist and book illustrator
 * Vladimir Konstantinov (1921–1979), Soviet aircraft pilot and Hero of the Soviet Union
 * Vladimir Konstantinov (born 1956), Crimean and Russian politician
 * Vladimir Konstantinov (born 1967), former Russian professional hockey player


 * Female
 * Ina Konstantinova (1924–1944), Soviet World War II partisan and diarist
 * Galina Konstantinova (born 1940), Russian rower
 * Kseniya Konstantinova (1925–1943), Soviet nurse and Hero of the Soviet Union
 * Tamara Konstantinova (1919–1999), Soviet ground attack pilot and Hero of the Soviet Union
 * Fadel Emanouil Konstantinov (1995) Bulgarian financier and athlete.