Wataru (written: 渉, 渡, 亘, 航, 和, 亙, or わたる in hiragana) is a common masculine Japanese name. The most common characters used to write Wataru are '渉'. Notable people with the name include:
Wataru Asō (born 1939), governor of Fukuoka Prefecture in Japan
Wataru Fukuda (born 1964), Japanese actor
Wataru Hatano (born 1982), Japanese voice actor
Wataru Hokoyama (born 1974), music composer
Wataru Inoue (born 1973), professional wrestler
Wataru Ishijima (1906–1980), paleontologist and geologist
Wataru Ito (born 1969), Japanese politician
Wataru Kozuki (born 1971), actress
Wataru Kubo (1929 – 2003), Japanese politician
Wataru Misaka (born 1923), American basketball player
Wataru Miyawaki (born 1980), vocalist of Japanese rock band 12012
Wataru Murayama, Japanese manga writer
Wataru Sakata (born 1973), professional wrestler and martial arts fighter
Wataru Takagi (born 1966), Japanese voice actor
Wataru Takeishi (born 1982), music video director
Wataru Takeshita (born 1946), Japanese politician
Wataru Yamazaki (born 1980), Japanese footballer
Wataru Yazawa (矢澤 航, born 1991), Japanese hurdler
Wataru Yoshikawa (born 1968), Japanese motorcycle rider
Wataru Yoshizumi (born 1963), Japanese manga artist