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

• Marcell Deák-Nagy (born 1992), Hungarian sprinter who specialises in the 200 and 400 metres

Surname list

This page lists people with the surname Deák.
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