| Birth Date: | 10 April 1922 |
| Birth Place: | Obbola, Sweden |
| Death Date: | 6 April 2001 (aged 78) |
| Death Place: | Söderhamn, Sweden |
| Height: | 1.82m (05.97feet) |
| Weight: | 73kg (161lb) |
| Sport: | Athletics |
| Event: | 800 m, 1500 m |
| Club: | Gefle IF, Gävle |
| Pb: | 800 m – 1:49.4 (1948) 1500 m – 3.48.6 (1949) |
| Show-Medals: | yes |
Bengt Rolf Ingvar Bengtsson (10 April 1922 – 6 April 2001) was a Swedish middle-distance runner. He competed in the 800 m event at the 1948 Summer Olympics and 1950 European Athletics Championships and finished in fifth and fourth place, respectively. Bengtsson won the national titles in the 800 m (1948–50) and 4 × 1500 m relay (1947–49) and held a world record in the relay.