Dillon Anthony Lewis (born 4 January 1996) is a Welsh professional rugby union player who plays as a prop for Premiership Rugby club Harlequins and the Wales national team.

Lewis made his debut for the Cardiff in 2014 having been developed through their academy system.

Ahead of the 2023/24 season, Lewis left Cardiff to join Harlequins alongside Wales and Cardiff teammate Jarrod Evans.

He made his full Welsh international debut 16 June 2017 against Tonga.

[2] In February 2024, having achieved more than 50 caps ahead of his move to Harlequins, Lewis was eligible to play for Wales despite not playing club rugby in the country having exceeded the 25 caps required to meet this criterion.