Kyle Sinckler (born 30 March 1993) is an English professional rugby union player who plays as a tighthead prop for Premiership club Harlequins and the English national team. He has previously played for Richmond and Ealing Trailfinders.
A product of the Harlequins Academy, Sinckler made his brief debut in the 2011–12 season, before going out on loan to Richmond for the entire season, becoming part of the squad that won promotion to the National League 1. He returned to Harlequins for the 2012–13 season as a primary squad rotation player; a brief loan to Ealing followed in the following league campaign, before breaking into the first team squad.
Sinckler has represented England at under-16, under-18, under-19 and under-20 levels, and has been a crucial member of the senior team since 2016, in which he has won the Six Nations Championship, the Calcutta Cup and the Millennium Trophy. Sinckler's performances for England led to him being include in Warren Gatland's squad for the British and Irish Lions' tour to New Zealand in 2017. In 2019, he was a member of the England squad that finished as runners-up to South Africa at the Rugby World Cup in Japan, though picked up injury during the final.