Pat Sanderson (born 6 September 1977 in Chester) is a former England international rugby union player and a former flanker for Worcester.

The Colts won the Lancashire County Rugby Football Union Colts Cup in both seasons, in the latter season he played alongside his brother, Alex Sanderson, the future England Captain, Steve Borthwick, and John Kirkpatrick (rugby league).

Sanderson is an established and firm favourite at Worcester Warriors – both of the supporters and the club, and is fondly referred to as 'Captain Fantastic'.

In 2003–04 he played in six of the IRB World Series rounds including the three wins in South Africa, Hong Kong and London.

Sanderson committed his future to Worcester Warriors on the eve of the 2007/08 season by agreeing a new two-year deal, which would see him remain at Sixways until 2010.