| Mike Sprengelmeyer | |
| Fullname: | Michael Sprengelmeyer |
| Birth Date: | 6 July 1946 |
| Birth Place: | Dubuque, Iowa |
| Plays: | Right-handed |
| Singlesrecord: | 1–4 |
| Usopenresult: | 1R (1966, 1967, 1969) |
Michael Sprengelmeyer (born July 6, 1946) is an American former professional tennis player.
A native of Dubuque, Iowa, Sprengelmeyer played collegiate tennis for Southern Illinois University. His elder brothers, twins Bob and Roy, are both SIU Hall of Famers.[1] He featured in the US Open main draw three times. In 1967 he played one of the longest three-set professional matches on record against Dick Knight in Southampton, New York, which he lost 30–32, 6–3, 17–19, across five and a half hours. The first set alone took three hours to complete.[2]
Sprengelmeyer, a member of the Iowa Tennis Hall of Fame, is the father of tennis player Mitch Sprengelmeyer.