Ursus of Toul was a 5th-century bishop in France who served the see of Toul. Following the leadership of Saint Auspicius, he was elected to this position around 490. During the reign of the Frankish king Clovis, Ursus hosted the monarch in his city in 496. To assist with the king's conversion to Christianity, the bishop appointed a priest named Saint Waast to provide religious instruction to the sovereign.