| Office: | Member of the National Assembly for Saône-et-Loire's 4th constituency |
| Predecessor: | Didier Mathus |
| Successor: | Éric Michoux |
| Birth Place: | Belley, France |
| Party: | Socialist Party |
| Birth Date: | 28 December 1951 |
| Termstart: | 20 June 2012 |
| Termend: | 9 June 2024 |
Cécile Untermaier (born 28 December 1951) is a French civil servant and politician from the Socialist Party. She served as a member of the National Assembly for Saône-et-Loire's 4th constituency from 2012 to 2024.[1]