Masao Adachi
writer,director,actor
- Gender: Male
- Birthday: 1939-05-13 ( 85 years old )
- Place of Birth: Fukuoka, Fukuoka Prefecture, Japan
- Also Known As: 足立正生
- IMDB:nm0010395
Masao Adachi (足立正生 Adachi Masao, born May 13, 1939) is a Japanese screenwriter and director who was most active in the 1960s and 1970s.