The Sheriff of Bute was historically the office responsible for enforcing law and order on the Isle of Bute, Scotland and bringing criminals to justice.
Before the Jacobite uprising of 1745 and the abolition of hereditary jurisdictions in 1746, the office was hereditary until shifting to salaried sheriffs by 1748. The office was mostly held by the Stewarts of Bute. The most historically prominent Sheriff was John Stuart, 3rd Earl of Bute.
^On the death of Robert Hunter, Sheriff of Dumbarton & Bute on 25 December 1871 Bute was joined with Renfrewshire and Dumbarton was joined with Stirlingshire. "Epitome of the News". Leicester Mercury. 30 December 1871. p. 2.
^Union of Sheriffdoms Order 1946 S.I.1946/1037 (S.40):
On the Sheriffdom of Ross, Cromarty & Sutherland becoming vacant
Ross & Cromarty and Inverness Moray (formerly called Elgin) and Nairn united as the Sheriffdom of Inverness, Moray, Nairn & Ross & Cromarty
Sutherland united with Caithness, Orkney & Zetland to form Sheriffdom of Caithness, Sutherland, Orkney & Zetland
On the Sheriffdom of Bute & Renfrew becoming vacant
The counties disunited
Bute united with Ayr to become the Sheriffdom of Ayr & Bute
Renfrew united with Argyll to become the Sheriffdom of Renfrew & Argyll (in effect 18 July 1946)