John I, Count of Foix also known as Jean de Foix-Grailly was Count of Foix from 1428 until his death in 1436. He succeeded his mother Isabella, Countess of Foix. His father was Archambaud de Grailly.
- Occupation
- aristocrat, soldier
- Position held
- French co-prince of Andorra, count of Foix
- Citizenship
- France
- Born
- 1382
- Died
- May 4, 1436