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
{{given name
Japanese masculine given names