Yumi Maruyama
Personal information
Nationality	Japanese
Born	(1957-11-30) 30 November 1957 (age 66) Setagaya, Tokyo, Japan
Height	1.75 m (5 ft 9 in)
Volleyball information
Position	Middle blocker
Number	1
National team
1977–1988  Japan
Honours Women's volleyball Representing  Japan Olympic Games 1984 Los Angeles Team World Championship 1978 Soviet Union FIVB World Cup 1977 Japan 1981 Japan Asian Games 1978 Bangkok Team 1982 New Delhi Team

Yumi Maruyama (née Egami, Japanese: 丸山 由美, née 江上; born 30 November 1957) is a Japanese former volleyball player who competed in the 1984 Summer Olympics and in the 1988 Summer Olympics. She was born in Setagaya, and grew up in Higashimurayama, Tokyo. After she attended Shoin Junior and Senior High School, she joined Hitachi Ltd., where she became a captain of the team in 1979.

In 1984, she was a member of the Japanese team that won the bronze medal in the Olympic tournament.

Four years later, she finished fourth with the Japanese team in the 1988 Olympic tournament.