| Karl Haffer | |
| Nationality: |  Romania |
| Birth Date: | 2 October 1912 |
| Years1: | ?-? |
| Clubs1: | Hermannstädter Turnverein |
| Nationalyears1: | ?-? |
| Nationalteam1: | Romania |
| Nationalcaps1: | 3 |
| Ntupdate: | Caps and goals only during the 1936 Summer Olympics |
Karl Haffer also written as Carol Haffer (born 2 November 1912) was a member of the Romania men's national handball team, who took part in the 1936 Summer Olympics.[1] On club level he played for Hermannstädter Turnverein in Romania.
He is the brother of Fritz Haffer, also a handball player .[2]