| Birth Date: | 8 February 1879 |
| Birth Place: | Porvoo, Finland |
| Death Date: | 5 May 1959 (aged 80) |
| Death Place: | Porvoo, Finland |
| Height: | 177 cm |
| Weight: | 96 kg |
| Sport: | Greco-Roman wrestling |
| Club: | Porvoon Akilles |
| Show-Medals: | yes |
Adolf Valentin "Adi" Lindfors (8 February 1879 – 5 May 1959) was a heavyweight Greco-Roman wrestler from Finland.[1] He competed at the 1912, where we became injured and had to withdraw, and 1920 Olympics, where he won a gold medal, aged 41. [2]
Lindfors started seriously training in sports around 1900, and won Finnish titles in weightlifting in 1903–04 and in Greco-Roman wrestling in 1905, 1910 and 1913. He placed second at the 1911 World Championships. Back in 1902 he founded Porvoon Akilles and headed it from 1902 to 1912.