Sunao (written: 直, 淳, 愿, 順, 須直, 直男 or すなお in hiragana) is a masculine Japanese given name. Notable people with the name include:
, Japanese manga artist , Japanese footballer , Japanese swimmer , Japanese anime director , Japanese Go player Sunao Sonoda (1914–1984), Japanese politician , Japanese pathologist , pen-name of Sunao Matsumoto, Japanese writer