Henry (I) Kőszegi from the kindred Héder (Hungarian: Héder nembeli (I.) Kőszegi Henrik, Croatian: Henrik II. Gisingovac, German: Heinrich II. von Güns; died 26/29 September 1274), commonly known as Henry the Great, was a Hungarian influential lord in the second half of the 13th century, founder and first member of the powerful Kőszegi family. Henry was one of the most notable earlier "oligarchs", who ruled de facto independently their dominion during the era of feudal anarchy.