| Birth Name: | Fyodor Nikolayevich Tselidi |
| Birth Date: | 5 August 1996 |
| Birth Place: | Vladikavkaz, North Ossetia–Alania, Russia |
| Weight Class: | 90 kg |
| Club: | A.C. PAOK |
| Olympics Rank: | 3 |
| Olympics Year: | 2024 |
| Olympics Weight: | Men's 90 kg |
| Worlds Rank: | R16 |
| Worlds Year: | 2022 |
| Worlds Weight: | Men's 90 kg |
| Worlds Year2: | 2024 |
| Worlds Weight2: | Men's 90 kg |
| Regionals Type: | EU |
| Regionals Rank: | 3 |
| Regionals Year: | 2018 |
| Regionals Weight: | Men's 90 kg |
| Regionals Year2: | 2022 |
| Regionals Weight2: | Men's 90 kg |
| Updated: | 31 July 2024 |
Theodoros Tselidis (el|Θεόδωρος Τσελίδης; born 5 August 1996; in Russia known as Fyodor Nikolayevich Tselidi; ru|Фёдор Николаевич Целиди)[1] is a Greek judoka. He won a bronze medal in judo while representing Greece at the 2024 Summer Olympics. He won a bronze medal for Greece at the 2018 European Championships.[2] He also won a bronze medal at the 2018 Mediterranean Games.[3]
Tselidis was born in 5 August 1996 in North Ossetia–Alania, Russia; his father was an ethnic Greek.[4] In 2019, he graduated from North Ossetian State University with a degree in international political economy.
On 31 July 2024, Theodoros won a bronze medal at the Olympic Games in Paris in the 90 kg weight category.