Takuji Hayata (?? ??, Hayata Takuji, born October 10, 1940) is a retired Japanese gymnast.
At the 1964 Summer Olympics in Tokyo, he won gold medals in the rings and team all-around events.
Individually he finished eighth all around.
At the 1970 World Championship he won a bronze medal at the horizontal bar, as well as a team gold.Later he became a coach and lead the Japanese team at the 1976 Summer Olympics and the 1978 World Championships.
He also became a physical education professor at Nippon University, and was inducted into the International Gymnastics Hall of Fame in 2004.