John I of Forez

John I (c. 1275 – 3 July 1333) was count of Forez from 1278, succeeding his father Guigues VI under the regency of his mother, Joan of Montfort. In 1296 he married Alix de la Tour-du-Pin.

He helped bring Lyon under the French crown through the treaty of Vienne in 1312, and organised the Lyon conclave that elected Pope John XXII. From 1317 he sat on the royal council and established a chambre des comptes at Montbrison. His son Guigues VII succeeded him.