| Theodoros Alexis | |
| Birth Date: | 6 May 1975 |
| Position: | Midfielder |
| Youthyears1: | -1992 |
| Youthclubs1: | Attalos |
| Years1: | 1992–1997 |
| Clubs1: | Apollon Athens |
| Caps1: | 146 |
| Goals1: | 19 |
| Years2: | 1997–1998 |
| Clubs2: | AEK Athens |
| Caps2: | 4 |
| Goals2: | 0 |
| Years3: | 1998 |
| Clubs3: | →Athinaikos (loan) |
| Caps3: | 10 |
| Goals3: | 0 |
| Years4: | 1998–2000 |
| Clubs4: | Apollon Smyrnis |
| Caps4: | 34 |
| Goals4: | 4 |
| Years5: | 2000 |
| Clubs5: | Akratitos |
| Years6: | 2001–2002 |
| Clubs6: | Panelefsiniakos |
| Years7: | 2002–2003 |
| Clubs7: | Marko |
Theodoros Alexis (el|Θεόδωρος Αλέξης; born 6 May 1975) is a Greek former professional footballer who played as a midfielder.