Owen Williams (born 27 February 1992) is a Welsh professional rugby union player who plays as a fly-half for the Ospreys.

Following the departure of fly-halves George Ford and Ryan Lamb, and former England fly-half Toby Flood's poor run of form combining with his decision to depart at the end of the season for Toulouse, Williams established himself as the club's first choice outside half.

Williams's fine form and key contributions helped propel an initially misfiring Leicester Tigers back into the top four of the Premiership and into the quarterfinals of the Heineken Cup.

[9] Following his release from Worcester, Williams joined the Ospreys on 6 December 2022, as injury cover heading into their European campaign.

[16] Williams was set to win his fourth cap for Wales against Ireland in the 2020 Six Nations, having been named on the bench, but was injured in training and subsequently ruled out of the remainder of the tournament.