James Clyde Dietz
- Bats Right, Throws Right
- Height 6' 0", Weight 170 lb.
- School Oregon State University, Southern Oregon College
- High School Eugene High School
Jim Dietz coached San Diego State University for 31 years. He was inducted into the American Baseball Coaches Association Hall of Fame in 2002. He won over 1,150 games, putting him among the all-time leaders in NCAA Division I. He was the 10th Division I coach to 1,000 wins.
From 1968-1971, he was freshman baseball and basketball coach at the University of Oregon.
Dietz was head coach at San Diego State from 1972-2002. His 1984 team won 66 games, most in the country. He was named Western Athletic Conference Coach of the Year in 1986 and 1994.
He managed the Alaska Goldpanners off-and-on for many years, leading his team to four National Baseball Congress titles. In that role, he worked with Dave Winfield and Mark McGwire. In other summer leagues, he worked with Mark Langston and Joe Carter.