Iida (written: 飯田) is a Japanese surname. Notable people with the surname include:
Akira Iida (飯田 章, born 1969), Japanese racing driverGeorge Iida (飯田 譲二, born 1959), Japanese film and television director, screenwriter, manga author, and novelistKaori Iida (飯田 圭織, born 1981), Japanese singer and artistMasaki Iida (飯田 真輝, born 1985), Japanese football playerJumpei Iida (飯田 淳平, born 1981), Japanese football refereeShōjirō Iida (飯田 祥二郎, 1888–1980), general in the Imperial Japanese Army in World War IITatsumi Iida (飯田 健巳, born 1985), Japanese football playerTetsu Iida (飯田 鉄, born 1948), Japanese photographerTetsunari Iida (飯田 哲也, born 1959), director of the Institute for Sustainable Energy Policies in JapanTetsuya Iida (飯田 哲也, born 1968), former Nippon Professional Baseball outfielderIida Umanosuke (飯田 馬之介, born 1961), director of the anime series Hellsing (TV series)