Norman Cowie (Independent), who celebrated his 90th birthday this month, has served as a councillor since 1944.
'His record of 58 years' continuous service is an amazing achievement which marks him out as the Grand Old Man of Scottish local government. I would be surprised if there is a councillor anywhere in the UK who has given longer elected service,' said Mr Bisset.
Mr Cowie, a farmer from Crimond in the Buchan area of Aberdeenshire, has served as a member of four local authorities - Deer DC from 1944, Aberdeen CC until 1975, Banff and Buchan DC until 1996 and since then he has represented the Lonmay and St Fergus Ward on Aberdeenshire Council.
He was convener of Banff and Buchan DC for eight years and chairman of Aberdeenshire Council's Buchan Area Committee from 1996-99. He is currently deputy chairman of the council's commercial service committee.
Born at South Crimongorth, Lonmay, he left school at thirteen-and-a-half to work on the family farm and has lived in the Buchan area all his life.