Hanák (feminine Hanáková) or Hanak is a Czech and Sudeten German surname. The name is also used in Austria, Hungary and Slovakia. Hanak (Czech: Hanakian) is an inhabitant of Haná.
Notable people with the surname include:
- Andrea Hanak (born 1969), German painter
- Anton Hanak (1875–1934), Austrian sculptor
- Dušan Hanák (1938), Slovak film director
- Jakub Hanák (1983), Slovakian rower
- Tomáš Hanák (1957), Czech actor and comedian