David "Dai" Smith (birth unknown – death unknown) was a Welsh professional rugby league footballer who played in the 1900s. He played at representative level for the Other Nationalities, and at club level for Salford, as a fullback, i.e. number 1. Smith appeared on the losing side in three Challenge Cup finals; in the 1899–1900, 1901–02 and 1902–03 seasons.