Renfrewshire SNP chief Brian Lawson is to stand down from politics next May.
After 25-years he has decided not to contest his Paisley East and Ralston seat at the next election.
Councillor Lawson was Renfrewshire Council leader in 2011.
Former Renfrewshire Council Leader and SNP party chairman Derek Mackay MSP said: “Brian has served Renfrewshire with distinction for over quarter of a century, and that is visible by the high regard he is held by his constituents and fellow politicians.
“Having served with him in Renfrewshire Council for over a decade I know how hard he has worked for his community, and that will be missed.
“Brian focused on issues that matter to his constituents and represented Paisley very well in the council chambers. I wish him well in whatever he chooses to do next in life, but his contribution to public service and local causes has been immense, and delivery in council housing improvements is a proud legacy.”