Walter de Burgh, 1st Earl of Ulster

Walter de Burgh, 1st Earl of Ulster (c. 1210–1271), was an Irish peer of the House of Burgh and the second son of Richard Mór de Burgh, Lord of Connacht. He succeeded to his father's Connacht lands in 1243, and in 1263 was created Earl of Ulster.

In 1270 he and the justiciar were defeated at Áth an Chip by Aedh mac Felim Ua Conchobair. He died in 1271 and was succeeded by his son Richard Óg, the Red Earl.