Yasuyuki Kase (加瀬 康之, Kase Yasuyuki, March 14, 1971) is a Japanese voice actor from Ōta Ward, Tokyo, who is affiliated with Office Osawa. Previously, he was a member of Mausu Promotion from 1995 to October 31, 2007. He joined Osawa Office on December 1, 2007.

He is known for dubbing the actors Ryan Reynolds, Paul Bettany, Leonardo DiCaprio, Chris Evans, and Josh Stewart.