Robert of Alençon (1344–1377) was the son of Charles II of Alençon and Maria de La Cerda y Lara. He succeeded his father in 1346 as Count of Perche.
On April 5, 1374, he married Jeanne (d. aft. January 20, 1407), the daughter of John I, Viscount of Rohan. They had one son, Charles (1375–1377), who did not survive his father.
| Preceded by Charles II |
Count of Perche 1346–1377 |
Succeeded by Peter II |