| Birth Date: | 25 December 1891 |
| Birth Place: | Habo, Sweden |
| Death Date: | 22 January 1980 (aged 89) |
| Death Place: | Stockholm, Sweden |
| Sport: | Gymnastics |
| Club: | I6 IF, Vänersborg |
| Show-Medals: | yes |
Klas Johan Gustaf Särner (25 December 1891 – 22 January 1980) was a Swedish gymnast who competed in the 1920 Summer Olympics.[1] He was part of the team that won the Swedish system event.
Särner was a military officer and reached the rank of captain. Since 1935 he taught fencing at a dramatic theatre school, and in 1946 had a supporting role in the film Iris och löjtnantshjärta.