Deák

Deák or Deak is a surname. Notable people with the surname include:


 * Adrienn Henczné Deák (1890–1956), Hungarian painter
 * Edit DeAk (1948–2017), née Deak, Hungarian-born American art critic and writer
 * Edward Deak, professor of economics
 * Ferenc Deák (politician) (1803–1876), Hungarian statesman and Minister of Justice
 * Ferenc Deák (footballer) (1922–1998), Hungarian football player
 * István Deák (1926–2023), Hungarian-born American historian, author and academic
 * Jon Deak (born 1943), Hungarian-American double bassist and composer
 * Kristóf Deák (born 1982), Hungarian film director, screenwriter, film producer and editor
 * Ladislav Deák (1931–2011), Slovak historian
 * László Deák (1891–1946), Hungarian army officer who served in World War I and World War II
 * Nicholas Deak (1905–1985), Hungarian-American banker and OSS and CIA agent
 * Stefan Deak (born 1991), Serbian footballer
 * Tamás Deák (composer) (born 1927), composer and conductor for Cat City and Vízisí
 * Tamás Deák (born 1976), stage name Speak, Hungarian rapper, model and actor
 * Zsombor Deak (born 1989), Romanian triathlete