| Manuel de Alencar Guimarães | |
| State Senate: | Paraná |
| Term Start: | 1908 |
| Term End: | 1920 |
| Predecessor: | Francisco Xavier da Silva |
| Successor: | Affonso Alves de Camargo |
Manuel de Alencar Guimarães (December 13, 1865 - September 9, 1940) best known as Alencar Guimarães was a Brazilian lawyer and politician, senator of Paraná from 1908 until 1911, and again from 1912 until 1920.[1]