| Boniface Ontuga Mweresa | |
| Birth Date: | 13 November 1993 |
| Birth Place: | Nyamira, Kenya |
| Height: | 1.74 m[1] |
| Weight: | 74 kg |
| Sport: | Athletics |
| Event: | 400 m |
Boniface Ontuga Mweresa (born 13 November 1993 in Nyamira) is a Kenyan sprinter specialising in the 400 metres. He competed in the 4 × 400 m relay at the 2012 Summer Olympics. His personal bests in the event are 44.96 seconds outdoors (Birmingham 2022) and 46.33 seconds indoors (Portland 2016). He is a Commonwealth bronze medalist in the 4x400m relay at the 2022 Commonwealth games.
| Representing | ||||||
|---|---|---|---|---|---|---|
| 2012 | World Junior Championships | Barcelona, Spain | 7th | 400 m | 46.50 | |
| Olympic Games | London, United Kingdom | – | 4 × 400 m relay | DQ | ||
| 2015 | IAAF World Relays | Nassau, Bahamas | 12th (h) | 4 × 400 m relay | 3:05.92 | |
| African Games | Brazzaville, Republic of the Congo | bgcolor=silver | 2nd | 400 m | 45.01 | |
| bgcolor=gold | 1st | 4 × 400 m relay | 3:00.34 | |||
| 2016 | World Indoor Championships | Portland, United States | 5th | 400 m | 46.86 | |
| African Championships | Durban, South Africa | bgcolor=silver | 2nd | 4 × 400 m relay | 3:04.25 | |
| 2017 | IAAF World Relays | Nassau, Bahamas | bgcolor=gold | 1st (B) | 4 × 400 m relay | 3:06.36 |
| World Championships | London, United Kingdom | 22nd (sf) | 400 m | 45.93 | ||
| 2018 | Commonwealth Games | Gold Coast, Australia | 16th (sf) | 400 m | 46.68 | |
| 6th (h) | 4 × 400 m relay | 3:13.521 | ||||
| 2024 | World Indoor Championships | Glasgow, United Kingdom | 4th | 4 × 400 m relay | 3:06.71 | |
| African Championships | Douala, Cameroon | 4th | 400 m | 45.62 | ||