Dan Roundfield, American basketball player (d. 2012)
Danny Thomas Roundfield (May 26, 1953 – August 6, 2012) was an American professional basketball player. The 6'8" forward/center graduated from Detroit's Chadsey Senior High School in 1971. On the collegiate scene, Roundfield was twice selected to the All-Mid-American Conference Team for Central Michigan University; he was also the 1975 MAC Player of the Year.

Roundfield spent 12 seasons in the American Basketball Association and National Basketball Association, playing for the Indiana Pacers (1975–1978), Atlanta Hawks (1978–1984), Detroit Pistons (1984–1985), and Washington Bullets (1985–1987). Then he moved to Turin, Italy, and played a season for Auxilium Torino.

Roundfield earned a reputation as a strong rebounder and tenacious defender, and during his career he was named to five NBA All-Defensive teams and three All-Star teams. His nickname was Dr. Rounds.

Roundfield was selected to the NBA Eastern Conference All-Star team in three consecutive seasons from 1980 to 1982. He was unable to play in 1982, though, due to an injury. He made the most of his 1980 All-Star appearance debut, scoring 18 points and grabbing 13 rebounds in 27 minutes coming off the bench. He came close to winning the game's MVP award for his fine performance being overshadowed by fellow Detroit product George Gervin's 34-point output.

Roundfield lived in Atlanta, where he worked for Camp Dresser & McKee Inc.

Roundfield died at Baby Beach in San Nicolas Zuid, Aruba in August 2012, drowning after helping his wife, Bernadine, to safety.