| Bo Jansson | |
| Birth Date: | 20 April 1937 |
| Birth Place: | Uppsala, Sweden |
| Height: | 175 cm |
| Weight: | 62 kg |
| Sport: | Modern pentathlon |
| Club: | F20 IF, Uppsala |
| Show-Medals: | yes |
Bo Jansson (born 20 April 1937) is a Swedish modern pentathlete who competed at the 1964 and 1972 Summer Olympics. In 1964 he finished eighth individually and fourth with the team, and in 1972 he placed 24th and fifth, respectively.