Euan Murray will leave Glasgow at the end of the season to join French side Pau.
The tighthead, who retired from international rugby last month, won the Pro12 with the Warriors last week.
The 66-times capped prop, who toured South Africa with the British & Irish Lions in 2009, has also enjoyed spells with Northampton, Newcastle, Agen and Worcester.
He said: “Returning to the club and the city after almost seven years away, it’s incredible to see how much the Warriors have developed both on and off the field.
“There’s a special culture that exists at Scotstoun and I’m honoured to have been a part of the title-winning squad this season.”