Williams says he hopes to follow in the Lions footsteps of outstanding Wales scrum-halves Sir Gareth Edwards, Brynmor Williams, Terry Holmes, Robert Jones, Rob Howley, Dwayne Peel, Mike Phillips and Gareth Davies.
Williams was named Gallagher Premiership Player of the Season after a standout debut campaign with Gloucester.
The 30-year-old joined Gloucester from Cardiff in 2024 and helped them to a fifth-placed finish in the Premiership, narrowly missing out on the play-offs by two points.
“Being in Wales was pretty tough, especially over the last couple of years playing internationally,” said Williams.
“I think the move to Gloucester helped me a lot and given me a break from the international rugby as well and it is nice to go back there.
“The way we played suited me and I have got a lot to thank Gloucester for.”
Williams’ performances saw him named in the Lions squad alongside England’s Alex Mitchell and Ireland number nine Jamison Gibson-Park, who missed Leinster’s United Rugby Championship (URC) final win against Bulls on Saturday.
