Sammy Giammalva Jr.
| Country (sports) | United States | 
|---|---|
| Born | March 24, 1963 Houston, Texas, United States  | 
| Height | 1.78 m (5 ft 10 in) | 
| Turned pro | 1981 | 
| Retired | 1990 | 
| Plays | Right-handed (two-handed backhand) | 
| College | University of Texas  Rice University  | 
| Prize money | $754,113 | 
| Singles | |
| Career record | 161–164 | 
| Career titles | 2  0 Challenger, 0 Futures  | 
| Highest ranking | No. 28 (21 October 1985) | 
| Grand Slam singles results | |
| Australian Open | QF (1982) | 
| French Open | 2R (1986) | 
| Wimbledon | 4R (1985) | 
| US Open | 3R (1980) | 
| Other tournaments | |
| WCT Finals | QF (1981) | 
| Doubles | |
| Career record | 155–138 | 
| Career titles | 4  0 Challenger, 0 Futures  | 
| Highest ranking | No. 22 (29 October 1984) | 
| Grand Slam doubles results | |
| Australian Open | 2R (1983, 1984) | 
| French Open | 1R (1986, 1987) | 
| Wimbledon | QF (1983) | 
| US Open | 3R (1983, 1988) | 
| Grand Slam mixed doubles results | |
| French Open | 2R (1980) | 
| US Open | 2R (1988) | 
Sammy Giammalva Jr. (born March 24, 1963) is a former professional tennis player from the United States. During his career he won 2 singles titles and 4 doubles titles. He achieved a career-high singles ranking of World No. 28 in 1985 and a career-high doubles ranking of World No. 22 in 1984.
Giammalva's father Sam played top-level amateur tennis and participated on two Davis Cup winning teams for the U.S. His older brother Tony was also a touring pro.
Giammalva left the Grand Prix tour in 1989 and enrolled in Rice University.