| Birth Date: | 16 September 1927 |
| Birth Place: | Borås, Sweden |
| Death Date: | 9 August 1994 (aged 66) |
| Death Place: | Göteborg, Sweden |
| Sport: | Swimming, water polo |
| Club: | IF Elfsborg, Borås |
| Show-Medals: | yes |
Olle Ingvar Johansson (16 September 1927 – 9 August 1994) was a Swedish swimmer and water polo player who competed in the 1948 and 1952 Summer Olympics. His 4 × 200 m freestyle teams finished fourth on both occasions, and his water polo team was fifth in 1948. Johansson won two European gold medals in the 4 × 200 m freestyle relay, in 1947 and 1950.