| Torsten Grönfors | |
| Fullname: | Torsten Gustav Magnus Henning Grönfors |
| Birth Date: | 8 August 1888 |
| Birth Place: | Lund, Sweden |
| Death Place: | Stockholm, Sweden |
| Sport: | Tennis, sailing |
| Club: | Royal Swedish Yacht Club KLTK, Stockholm |
Torsten Gustav Magnus Henning Grönfors (8 August 1888 – 28 May 1968) was a Swedish sailor and tennis player who competed in the 1912 Summer Olympics.[1]
He was a crew member of the Swedish boat R. S. Y. C., which finished fifth in the 8 metre class competition.
In the men's singles indoor tennis tournament he was eliminated in the round of 16 by Anthony Wilding who later won the bronze medal. In the outdoor singles tournament he was eliminated in the round of 32.
In the outdoor men's doubles event he and his partner Frans Möller were eliminated in the first round. In the outdoor mixed doubles he lost with his partner Annie Holmström in the quarter-finals.