彼得·约翰·丹尼斯（Peter John Dennis，1933年10月25日-2009年4月18日）是美国演员工会奖和戏剧奖得主，英国电影、电视、戏剧和配音演员。他广泛的职业生涯横跨大西洋两岸，项目范围从《复仇者联盟》到《侧身》。他最出名的也许是他三十多年的协会，在他的独角戏《打扰！维尼的大脑。

Peter John Dennis (25 October 1933 – 18 April 2009) was a Screen Actors Guild Award and Drama-Logue Award winning English film, television, theatre and voice actor. His extensive career spanned both sides of the Atlantic with projects ranging from The Avengers to Sideways. He was perhaps best known for his more than three decades association performing the works of A. A. Milne on stage in his one-man show entitled Bother! The Brain of Pooh.