| Matilda, Countess of Rethel | |
| Issue: | Ithier |
| Noble Family: | de Rethel |
| Father: | Hugh I, Count of Rethel |
| Mother: | Melisende of Crécy |
| Spouse: | Odo, Castellan of Vitry |
| Birth Date: | 1091 |
| Birth Place: | Rethel |
| Death Date: | 1151 (Aged around 60) |
Matilda (1091 in Rethel - 1151) was the countess of Rethel from 1124 until 1151.
She was a daughter of Count Hugh I and Melisende of Crécy. In 1124, she succeeded her brother Gervais as countess. She ruled jointly with her husband, Odo.
Matilda and Odo had a son, Ithier (1115-1171), who succeeded Odo as count.