| Reginald Uba | |
| Nationality: | Estonian |
| Sport: | Middle-distance running |
| Event: | 1500 metres |
| Birth Date: | 26 July 1911 |
| Birth Place: | Kohtla Parish, Governorate of Estonia, Russian Empire |
| Death Place: | Tallinn, Estonia |
Reginald Uba (26 July 1911 - 15 August 1972) was an Estonian middle-distance runner. He competed in the men's 1500 metres at the 1936 Summer Olympics.[1]
His son was sports journalist Toomas Uba (1943–2000).