Restituta Joseph Kemi (born 30 July 1971 in Singida) is a Tanzanian long-distance runner. She twice carried the flag for her native country at the opening ceremony of the Summer Olympics: in 2000 and 2004.
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
| Representing Tanzania | |||||
| 1997 | Corrida de Langueux | Langueux, France | 1st | 10 km | |
| 1998 | World Cross Country Championships | Marrakech, Morocco | 5th | Short race | |
| 17th | Long race | ||||
| 1999 | World Cross Country Championships | Belfast, Northern Ireland | 5th | Short race | |
| 12th | Long race | ||||
| Corrida de Langueux | Langueux, France | 1st | 10 km | ||
| World Championships | Seville, Spain | 13th | 10,000 m | ||
| 2000 | World Cross Country Championships | Budapest, Hungary | 22nd | Long race | |
| 10th | Team | ||||
| 2001 | World Cross Country Championships | Ostend, Belgium | 24th | Short race | |
| 8th | Team | ||||
| 13th | Long race | ||||
| 9th | Team | ||||
| World Half Marathon Championships | Bristol, England | 15th | Half marathon | ||