| Odette Herviaux | |
| Successor3: | Joël Guegan |
| Office: | Member of the Senate for Morbihan |
| Termend: | 1 October 2017 |
| Termend2: | 14 March 2010 |
| Termstart2: | 15 March 1998 |
| Termstart: | 1 October 2001 |
| Office2: | Regional Councillor of Brittany |
| Predecessor3: | Eugène Guillet |
| Birth Date: | 1 January 1948 |
| Termend3: | 9 March 2008 |
| Termstart3: | 18 June 1995 |
| Office3: | Mayor of La Croix-Helléan |
| Party: | PS |
| Nationality: | French |
| Birth Place: | Brest, France |
| Parliamentarygroup: | SOC |
Odette Herviaux (born 6 January 1948) is a French political personality. Member of the Socialist Party, she was the Mayor of La Croix-Helléan (Morbihan department) and Regional Councillor of Brittany. She served as a Senator from Morbihan between 2001 and 2017.