Ricard Ó Cuairsge Bourke, 7th Mac William Íochtar (English: /bɜːrk/; BURK; died 1479) was an Irish chieftain and noble. A son of Edmund na Féasóige de Búrca, 4th Mac William Íochtar (d.1458), Ricard was tainiste for his uncle, Risdeárd de Búrca, 6th Mac William Íochtar (d.1473), who had succeeded his brother Tomás Óg de Búrca, 5th Mac William Íochtar in 1460. The elder Risdeárd was by then over sixty years old, which meant that Ricard O'Cuairsge was the real power in the lordship.