House of Grailly House of Foix-Grailly
Arms of House of Grailly
Country	France  England Kingdom of Navarre
Founded	12th century
Founder	Gerard de Grailly [1]
Final ruler	Catherine of Navarre
Titles	King of Navarre Duke of Nemours Count of Foix Count of Comminges Count of Bigorre Earl of Kendal Viscount of Béarn Viscount of Benauges Viscount of Castillon Lord of Grailly Lord of Buch
Cadet branches	House of Foix-Grailly

The House of Grailly is a noble family from the Pays de Gex, which rose in the southern French nobility through marriage.

The family originated from Lake Geneva in the County of Savoy. Jean I de Grailly presumably was part of Peter II of Savoy entourage, whose niece married King Henry III of England. Jean would gain royal favour from King Edward I England and would receive the viscounty of Benauges. Later generations would gain among others, the County of Foix, the Duchy of Nemours, and the Kingdom of Navarre.