Valentino Urbani was an Italian mezzo-soprano or alto castrato who sang for the composer George Frideric Handel in the 18th century. He was known by the stage name Valentini. He sang the role of Eustazio at the première of Handel's Rinaldo, the role of Silvio at the premiere of Il pastor fido, and the role of Egeo at the first performance of Teseo. His powers of singing seem to have been limited and by the time of his Handel roles his voice was declining but he is reputed to have been a fine actor.