Inchmurrin () is an island in Loch Lomond in Scotland. It is the largest fresh water island in the British Isles.
Geography and geology
left|200px|thumb|View of Inchmurrin
Inchmurrin is the largest and most southerly of the islands in Loch Lomond. It reaches a height of towards the north and is largely wooded. There is an excellent view of the north end of the loch.
Along with Creinch, Torrinch, and Inchcailloch, Inchmurrin forms part of the Highland boundary fault. 200 deer are recorded in 1800. There are ruins of a castle, probably built for Duncan, 8th Earl of Lennox whose seat was Balloch Castle at the south end of Loch Lomond. After her husband Murdoch Stewart, Duke of Albany, father Donnchadh, Earl of Lennox, and two sons were executed by James I in 1425, Isabella Countess of Lennox retired to the castle on Inchmurrin with her grandchildren.
left|thumb|200px|A map from the 1800s showing the islands of Loch Lomond.
King James VI came to Inchmurrin on a hunting trip in August 1585 with the English diplomat Edward Wotton, while there was plague in Edinburgh and St Andrews. In July 1599, a French ambassador, Monsieur de Béthune, brother of the Duke of Sully, went on a hunting progress with James VI from Falkland Palace to Inchmurrin and Hamilton Palace. In 1617 King James made his only return visit to Scotland, and included a hunting trip to Inchmurrin in his itinerary. The Duke of Lennox wrote to the custodian of the island on 23 July 1617, asking for food to be prepared for "a good nombre of sharpe stomaches", probably a reference to the hunting trip. They used to have a sign at the jetty saying, "You are now entering Scott Country".
Facilities
As well as offering self catered accommodation in the form of 3 flats and an 8-person cottage, the island has its own bar and restaurant, open from Easter to October. Inchmurrin is licensed to hold civil ceremonies.
There is a naturist camp in the north east of the island.