| Headercolor: | lightblue |
| Aldwyn Sappleton | |
| Birth Date: | 21 December 1981 |
| Birth Place: | Saint Ann Parish, Jamaica |
| Height: | 1.89 m |
| Weight: | 74 kg |
| Sport: | Athletics |
| Event: | 800 metres |
| Team: | Oklahoma Sooners (USA) |
| Pb: | 800 m: 1:46.82 |
| Show-Medals: | yes |
Aldwyn Sappleton (born 21 December 1981, in Saint Ann Parish) is a Jamaican track and field athlete, who specialized in middle distance running.[1] He won three medals, including gold in the 1500 metres, at the 1999 CARIFTA Games in Fort-de-France, Martinique. He is also a four-time All-American track and field athlete, while playing for the Oklahoma Sooners, at the University of Oklahoma in Norman.
Sappleton represented Jamaica at the 2008 Summer Olympics in Beijing, and competed in the men's 800 metres. He ran in the seventh heat of the event, against seven other competitors, including Netherlands' Robert Lathouwers, and Andrew Wheating of the United States. Sappleton finished the race in sixth place, with a time of 1:48.19, failing to advance into the semi-final rounds.[2]