Louis I d'Orléans-Longueville (1480 - Beaugency, August 1 1516), was a French aristocrat and military, Grand Chamberlain of France and governor of the Provence.
He was the second son of François I d'Orléans-Longueville and Agnes of Savoy. He succeeded his elder brother François II d'Orléans-Longueville, when he died childless in 1512. He became Duke of Longueville, Count of Montgommery, Count of Tancarville, prince of Châlet-Aillon, Marquis of Rothelin and viscount of Abberville.
He was taken prisoner by the English in the Battle of Guinegate (1513), but was treated very well in England. He began a relationship with Jane Popincourt and was used as a supplementary ambassador in arranging the marriage of Mary Tudor and Louis XIII of France, as part of a peace treaty with France.
Louis had married in 1504, Joan of Hochberg (-1543), daughter of Philip of Hochberg.
They had: