| Flexa Ribeiro | |
| Office: | Senator from Pará |
| Term Start: | 1 February 2003 |
| Office1: | Vice-President of PSDB |
| Term Start1: | 9 December 2017 |
| Alongside1: | Marconi Perillo, Ricardo Tripoli, Paulo Bauer, Shéridan Oliveira, Carlos Sampaio, Aloysio Nunes |
| President1: | Geraldo Alckmin |
| Birth Date: | 12 September 1945 |
| Birth Place: | Terra Alta, PA, Brazil |
| Party: | PP |
| Profession: | Engineer |
Fernando de Souza Flexa Ribeiro (born September 12, 1945) is a Brazilian politician. He has represented Pará in the Federal Senate since 2005. He is a member of the Progressistas.[1]