is an English professional footballer who plays as an attacking midfielder for Serie A club Como.

Born and raised in Milton Keynes, he joined the youth system at Milton Keynes Dons aged 11 and broke into the first team five years later, during the 2012–13 season. Over the next two and a half years he made 88 official appearances for the team, scoring 24 goals. He signed for Tottenham Hotspur in February 2015 for an initial fee of £5 million, being loaned back to MK Dons for the remainder of the season. In each of his first two campaigns at Tottenham, Alli was voted the PFA Young Player of the Year and made the PFA Team of the Year. Towards the end of his time at Tottenham, Alli was plagued with bouts of poor form as well as strained relationships with managers José Mourinho and Antonio Conte, leading him to join Everton in January 2022 and later that year joining Beşiktaş on loan. Alli fell out of contract with Everton in July 2024, but continued to train and undergo physical rehabilitation with the club until January 2025 when he joined Serie A club Como.

Dele played for the England U17, U18 and U19 teams, before making his senior debut in 2015. He was selected for UEFA Euro 2016 and the 2018 FIFA World Cup, scoring in the latter and helping England to the semi-finals.