The 31-year-old veteran has made 347 appearances since joining Swansea in 2008, and has been in inspirational form again.
With Swansea sitting in a comfortable 15th position, and 10 points clear of 18th placed Sunderland, they have their leader to thank for a succession of fantastic displays.
This included his magnificent outing at Arsenal where he kept the Gunners forward line quiet, whilst scoring the winner and bringing three valuable points back to south Wales.
In 2009 he was voted the Wales footballer of the year after impressing with Swansea in the Championship.
Williams has been instrumental to the Swans since his arrival eight years ago. He helped his club achieve promotion to the Premier League in 2011, and has since been ever present in ensuring they remain there.
In 2013 he was handed the club captaincy after then captain Garry Monk stepped down from playing.
"It is obviously hypothetical because he is a proud captain of Wales but I think Ashley Williams would walk into the current England side. If there was such a thing as a British XI, there is no doubt he would be in as a centre-half right now."
Under the guidance of manager - Francesco Guidolin, Swansea will be looking to progress further next season, and he, along with the fans, will hope that their captain continues to be central to their development.