|Dundonald Road, Troon, South Ayrshire, Scotland KA10 7AB|
|Type||Local Authority coeducational secondary|
|Motto||Hic patet ingeniis campus
(Here lies a field open to the talents)
|Educational authority||South Ayrshire Council|
|Houses||Darley, Fullarton, Crosby, Portland, Lothian and Welbeck|
|Colour(s)||Purple and gold|
|Feeder schools||Troon Primary, Dundonald Primary, Muirhead Primary, Struthers Primary, Barassie Primary|
Marr College is a secondary school in Troon, South Ayrshire. Operated by South Ayrshire Council, the school was gifted to the town of Troon by Charles Kerr Marr. Throughout 2016-2017, the school has undergone extensive restoration works including a new build extending on from the original school building. The current Head Teacher of the school is Mrs. Elaine McGregor Sloman.
Marr College was funded from the money left to Troon by C. K. Marr. It opened in 1935.
Notable former pupils
- Ronni Ancona, actress
- Tom Brighton, footballer
- Andrew Cotter, sports prestenter
- Gordon Brown, rugby player
- Gordon Burns, footballer
- Alan Hutton, footballer
- Donald Jack, writer
- Tom Morton, writer and broadcaster
- Jamie Ness, footballer
- Steve Nicol, footballer
- Michael Russell, politician 
- Brian Whittle, athlete
- Susannah York, actress
- Andrew McBride, broadcaster
- Gilbride, Paul (12 March 2010). "Mike Russell barred by old school". Daily Express.
- "Old boy Michael Russell back at Marr College - Education". Scotsman.com. 30 April 2010. Retrieved 5 March 2012.