| Strokes: | Freestyle, backstroke |
| Club: | SoIK Hellas |
| Birth Date: | 7 September 1905 |
| Birth Place: | Malmö, Sweden |
| Death Date: | 10 November 1992 (aged 87) |
| Death Place: | Bromma, Stockholm, Sweden |
| Show-Medals: | yes |
Eskil Johannes Lundahl (7 September 1905 – 10 November 1992) was a Swedish swimmer who competed in the 1928, 1932 and 1948 Summer Olympics.
In the 1928 he was a member of the Swedish team that finished fifth in the 4×200 m freestyle relay. He was eliminated in a semi-final of the 100 m backstroke and in first round of the 100 m freestyle event. Four years later he was again eliminated in the first round of the 100 m freestyle and 100 m backstroke competitions.
At the 1948 Summer Olympics he participated as an architect in the art competition.[1]