The County of Bute (Scottish Gaelic: Siorrachd Bhòid), also known as Buteshire, is a historic county and registration county of Scotland. Now replaced by Argyll and Bute for the Isle of Bute, with the Argyll and Bute Council. The Isle of Arran and The Cumbraes are now in North Ayrshire Council area. Since the implementation of the Local Government etc. (Scotland) Act 1994, on the 1 April 1996.

The former County of Bute comprised a number of islands in the Firth of Clyde, between the counties of Argyll and Ayrshire, the principal islands being Bute, Arran, Great Cumbrae and Little Cumbrae. The county town is Rothesay, located on the Isle of Bute. The County of Bute had its own elected county council from 1890 to 1975.

Buteshire was created as a shire (the area administered by a sheriff) by Robert II around 1385. Prior to that the islands in the Firth of Clyde had not formed part of any shire. The position of Sheriff of Bute was initially given to Robert's illegitimate son, John Stewart, and subsequently passed to John's descendants, who became the Earls of Bute in 1703.

Inherited sheriffdoms were abolished by the Heritable Jurisdictions (Scotland) Act 1746, after which sheriffs were appointed by the crown. The Sheriffs (Scotland) Act 1747 then placed Buteshire under a joint sheriff with neighbouring Argyll.

Meanwhile, in 1667 Commissioners of Supply were established for each shire, which would serve as the main administrative body for the area until the creation of county councils in 1890. Elected county councils were created in 1890 under the Local Government (Scotland) Act 1889, taking most of the functions of the Commissioners of Supply. The County of Bute Council was based at the Rothesay Town Hall and County Buildings at 31 High Street in Rothesay, which had been built in 1835 and served as the meeting place for Rothesay Town Council and the Commissioners of Supply, as well as being the courthouse for Buteshire.

The County of Bute was abolished for local government purposes in 1975 under the Local Government (Scotland) Act 1973, which replaced Scotland's counties, burghs and landward districts, with upper-tier regions and lower-tier districts. The County of Bute was included in the Strathclyde region, with the Isle of Bute being placed in the Argyll district, and the Isle of Arran and the Cumbraes being placed in Cunninghame district. Strathclyde region was abolished in 1996 when the regions and districts were replaced by unitary council areas, with Argyll and Bute becoming a council area, and Cunninghame being renamed to become the North Ayrshire council area.

The County of Bute historic boundaries are still used for some limited official purposes connected with land registration, being a registration county.

The County of Bute consisted of two main islands in the Firth of Clyde separated by the Sound of Bute - Arran (also including the much smaller Holy Island, Hamilton Isle and Pladda off the south-east coast) and Bute (including the small isle of Inchmarnock off its west coast) - and also the Cumbraes between Bute and Ayrshire on the mainland, comprising Great Cumbrae, Little Cumbrae and the islets of The Eileans, Broad Islands, Castle Island and Trail Island.

Arran is Scotland's 7th largest island and is a popular tourist destination, often referred to as 'Scotland in miniature' due to the wide variety of scenery and geographical features that can be found here. The island is roughly peanut-shaped, being flatter in the south and more mountainous in the north, culminating in Goat Fell, the tallest mountain in Buteshire at 874 metres (2,866 ft). It is separated from the Kintyre Peninsula by the Kilbrannan Sound. Bute is in contrast is a much flatter though somewhat hilly island, especially in the north; it is separated from the Cowal Peninsula by the narrow Kyles of Bute. A number of lochs lie in the centre of the island, most notably Loch Fad, Loch Quien and Loch Ascog.

The Isle of Bute is connected by ferry to Wemyss Bay on the mainland; a ferry also connects the island with the Cowal Peninsula from the north-east of the island. An A-road runs along Bute's east coast and loops around the island's southern half; the northern half of the island is less well-served and can mostly only by traversed by foot or bike. Arran is also connected to the Scottish mainland by ferry; from the north one can reach Tarbert and Claonaig in Kintyre, and from Brodick ferries depart for Ardrossan in Ayrshire and Campbeltown further down the Kintyre Peninsula. A road goes around the edge of the island, with a B road cutting east–west across. A ferry also connects Great Cumbrae with Largs in Ayrshire.

There was a Buteshire constituency of the House of Commons of the Parliament of Great Britain from 1708 to 1800 and of the Parliament of the United Kingdom from 1801 to 1918. Between 1708 and 1832 it was an alternating constituency with Caithness: one constituency elected a Member of Parliament (MP) to one parliament then the other elected an MP to the next. Between 1832 and 1918 it was a separate constituency, electing an MP to every parliament.

The population of Buteshire in 1841 was 15,740.

In 1918 the constituency was combined with the Ayrshire North constituency to form the Bute and Northern Ayrshire constituency, a constituency which straddled the boundary between the local government counties of Bute and Ayrshire.

In 1983, eight years after Scottish local government counties had been abolished, the Bute and Northern Ayrshire constituency was divided between the Argyll and Bute constituency and the Cunninghame North constituency.

In 2005, both constituencies were enlarged as part of the Fifth Periodic Review of Westminster constituencies. The name "Argyll and Bute" was retained, while the enlarged Cunningham North was renamed North Ayrshire and Arran.

Constituencies with similar boundaries to the pre-2005 constituencies, and also called Argyll and Bute and Cunninghame North, are used by the Scottish Parliament.

• North Bute
• Rothesay
• Kingarth
• Cumbraes or Great Cumbrae
• Kilbride, Arran
• Kilmory, Arran
• Lochranza

Towns and places in Buteshire include:

• 
  Rothesay Castle, Bute, with the 16th century forework in the centre, and the 13th century "Pigeon Tower" on the right
• 
  Brodick Castle, Arran
• 
  Kilmory Castle is incorporated into Meikle Kilmory Farm, Bute
• 
  Machrie Moor Stone Circle, Arran
• 
  Isle of Arran
• 
  Blaeu Atlas. Arania
• 
  Blaeu Atlas. Buthe Insula
• 
  Shire of Bute. by H. Moll
• 
  Kerrycroy Bay, Bute
• 
  Ardbeg, Bute
• 
  Lighthouse on Holy Island
• 
  The isle of Pladda as seen from Arran, with Ailsa Craig in the distance
• 
  Machrie Moor Standing Stones on Arran
• 
  Goat Fell on Arran, the highest point of Buteshire

• List of counties of Scotland 1890–1975

• Hedderwick, Robert (1878), "County of Bute" , Encyclopædia Britannica, vol. 4 (9th ed.), pp. 579–581
• NLS map of Buteshire. John Thompson's Atlas of Scotland. 1832.

55°45′N 5°15′W / 55.750°N 5.250°W / 55.750; -5.250

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