Irulegi ([iɾuˈleɡi]) is the Basque name for Irouléguy, a commune in the Pyrénées-Atlantiques department in south-western France.
It may also refer to: A Basque surname, in Spanish Irulegui Irouléguy AOC, a wine Hand of Irulegi, an archeological artefact with Basque inscriptions José Antonio Irulegui, a Spanish former footballer Irulegi (mountain), a mountain in the Aranguren municipality in Navarre in the Spanish Basque country (Basque: :eu:Irulegi (Aranguren)) Irulegi castle, a castle on the mountain (Basque: :eu:Irulegiko gaztelua; Spanish: :es:Castillo de Irulegui)