Grit Müller (amụrụ ya na 6 June 1972) bụ onye na-egwu mmiri na Germany lara ezumike nká nke meriri ọla ọcha na 800 m freestyle na 1991 World Aquatics Championship na ọla nchara na 400 m onye medley na 1989 European Aquatics Championship
Ọ dị mma. O meriri aha mba isii na 4×200 m relay (1988), 400 m freestyle (1991), 800 m freestyle (1990) na 400 m medley (1989<unk>91).