Troon is a town in South Ayrshire, Scotland. It is situated on the west coast, about eight miles north of Ayr and three miles northwest of Glasgow Prestwick International Airport. Lying across the Firth of Clyde, the Isle of Arran can be seen. Troon is also a port with freight and ferry services — the P&O Express to Larne and a yacht marina. In May 2006, a ferry service to Campbeltown was added.

Troon is famous for its Royal Troon golf course, one of the hosts to the Open Golf Championship. The course is chosen to host this annual event roughly every seven years.

The club was founded in 1878, and its Old Course is now one of the host courses for The Open Championship, one of the major championships on the PGA Tour and European Tour.

The 2004 Open Championship was held at Royal Troon, and was won by Todd Hamilton in a 4-hole playoff against Ernie Els.

Royal Troon is home to both the longest and shortest holes in Open Championship golf. The par-3 8th hole ("Postage Stamp") measures a short 123 yards (112 m) and is regarded as one of the top holes in the world, while the par-5 6th ("Turnberry") is 601 yards (550 m) long.