Watase (written: 渡瀬) is a Japanese surname. Notable people with the surname include:
, Japanese ski jumper , Japanese professional wrestler , Japanese manga artist and illustrator , Japanese writer , Japanese actor , Japanese ski jumper , Japanese manga artist
Fictional characters , protagonist of the anime series Buddy Complex , protagonist of the anime film Children Who Chase Lost Voices , a character in the anime series Mawaru Penguindrum , a character in the video game series Yakuza/Like a Dragon