Troon sits eight miles north of Ayr on the west coast of South Ayrshire, looking out across the Firth of Clyde toward the mountains of Arran. The name is almost certainly Brythonic or Pictish, cognate with the Welsh trwyn - meaning nose, or cape. The shape of the coast here is exactly that: a blunt nose of land sticking out into the firth, which is why the Vikings, the Picts, the Welsh-speaking Britons who came before them, and possibly the people who came before them all pointed at it and said something close to nose. When Scottish Gaelic became the dominant language of the region, the name may have shifted to An t-Sron - same meaning, different language. Today the town's Gaelic form is given as An Truthail, but the deep etymology points back to that ancient observation: this is the Cape. This is the Nose.

Troon Harbour opened in 1812 and reshaped the town's destiny. The Duke of Portland needed somewhere to ship coal from his Kilmarnock pits, and his engineers built both the railway and the basin to receive it. A natural headland was extended with a ballast bank made from the dumped ballast of incoming merchant ships - an act of patient improvisation that doubled as a breakwater. By 1839 the railway had been upgraded for steam locomotives and ran passengers properly. Troon railway station became one of the first in Scotland. The harbour spawned the Ailsa Shipbuilding Company, which launched merchant and passenger vessels for customers around the world; the fishing fleet from Ayr relocated here; and a Ro-Ro ferry terminal eventually grew up alongside the yacht marina. Shipbuilding ended at Troon in 2000. The cranes that built ships for decades came down, and the harbour shifted to timber, containers, fishing, yachts, and seasonal ferries. Since March 2024, Caledonian MacBrayne has run the Brodick service to Arran from here while Ardrossan undergoes upgrades.

Long before the harbour, the Fullarton family held the lands around Troon. William Fullarton built Fullarton House in 1745, and his son later altered it; the Marquess of Titchfield - shortly to become the 4th Duke of Portland - bought the property in 1805, lived there briefly, and used it as a base for developing the harbour and railway. The house itself was demolished in 1966 after the council, which had purchased it in 1928, could no longer afford to maintain it. The stable block, ornamental pediments, walled gardens, doocot, and ice house all remain on what is now a public park. The older Crosbie estate, granted by Robert II to the Fullartons in 1344, has a ruined castle which by the eighteenth century had been partly demolished and converted to an ice house. The Crosbie church and cemetery, first recorded in 1229 with the present structure dating from 1691, became Troon's burial ground until 1862. Local tradition says the roof of the old church blew off on the day Robert Burns was born in 1759 - a romantic detail too good to verify, included here for the same reason it has survived for two centuries.

Troon's contemporary fame rests partly on Royal Troon Golf Club, whose Old Course - just south of the town along the coastal links - has hosted ten Open Championships, most recently in 2024. The club shares the same wind, the same dunes, and almost the same line of railway as the town that grew up around the harbour. Around fifteen thousand people live in Troon today. The 2014 Scottish independence referendum was the kind of moment that revealed local character: Troon, counted with the rest of South Ayrshire, voted sixty-five percent No, more emphatically than most of Scotland. The town has produced a long list of notable people for its size - Colin Montgomerie the golfer, Susannah York the actress, Andrew Cotter the BBC sports broadcaster, Scott Manley the science communicator, the rugby player Gordon Brown of the British and Irish Lions, the boxer Dick McTaggart, and the science fiction writer Duncan Lunan among them. A small town on a Scottish headland, but a long list.