William Silva de Carvalho ComM (born 7 April 1992) is a Portuguese professional footballer who plays as a defensive midfielder for La Liga club Real Betis and the Portugal national team. He spent most of his career with Sporting CP since making his debut with the first team at age 18, going on to appear in 193 competitive matches and win the 2015 Taça de Portugal. In 2018, he signed with Betis.