Thomas, Count of Savoy
| Thomas Ι | |
|---|---|
Seal of Thomas I | |
| Count of Savoy | |
| Reign | 1189–1233 |
| Predecessor | Humbert III |
| Successor | Amadeus IV |
| Born | c. 1178 Aiguebelle |
| Died | 1 March 1233 Moncalieri |
| Spouse | Margaret of Geneva |
| Issue more... | Amadeus IV Thomas ΙΙ William of Savoy Peter II Philip I Boniface Beatrice |
| House | Savoy |
| Father | Humbert III of Savoy |
| Mother | Beatrice of Viennois |
Thomas Ι (Tommaso I; c. 1178 – 1 March 1233) was Count of Savoy from 1189 to 1233. He is sometimes numbered "Thomas I" to distinguish him from his son of the same name. His long reign marked a decisive period in the history of Savoy.