| Headercolor: | lightblue |
| Theodoros Tounousidis | |
| Birth Date: | 13 January 1984 |
| Birth Place: | Stockholm, Sweden |
| Weight: | 960NaN0 |
| Sport: | Wrestling |
| Event: | Greco-Roman |
| Club: | Spårvägens BK (SWE) |
| Coach: | Ryszard Swierad (SWE) |
| Show-Medals: | yes |
Theodoros Tounousidis (el|Θεόδωρος Τουνουσίδης; born January 13, 1984) is a Swedish-born Greek wrestler who competed for the men's Greco-Roman 96 kg (heavyweight division) at the 2008 Summer Olympics in Beijing.[1] Tounousidis received a bye for the second round, before losing out to Georgia's Ramaz Nozadze, with a technical score of 1–3, and a classification point score of 1–3.[2]
Tounousidis eventually won the silver medal for the heavyweight category at the 2009 Mediterranean Games in Pescara, Italy, losing out to Turkey's Serkan Ozden. He is also a member of Spårvägens BK in Stockholm, Sweden, being coached and trained by Ryszard Swierad. He is fluent in Greek, English, German, and Swedish.