Events from the year 1877 in Scotland.

• 24 April – six Scotch whisky distilleries combine to form Distillers Company.^[1]
• 16 October – the Abertay light vessel is moored on station off Dundee, Scotland's first lightvessel.^[2]
• 22 October – Blantyre mining disaster: Scotland's worst-ever mining accident kills over 200.^[3]
• 3 December – the original Mount Stuart House on the Isle of Bute is burned down.
• Ex-President of the United States Ulysses S. Grant tours his ancestral Scotland.^[4]
• The rebuilt Ardverikie House in Badenoch, designed by John Rhind, is completed.^[5]
• Cluny Harbour at Buckie is built.
• Wick Harbour breakwater is washed away in a storm for a second time.
• Mitchell Library established in Glasgow.
• Manufacture of linoleum at Kirkcaldy begins.^[6]
• Separate U.K. Ayrshire cattle and Galloway cattle societies established and herd books set up.^[7]
• A breed register for the Clydesdale horse is established.

• 25 February – John Tait Robertson, international footballer (died 1935)
• 12 May – William Weir, 1st Viscount Weir, industrialist and politician (died 1959)
• 7 August – Leslie Hunter, born George Hunter, painter (died 1931)
• 9 November – Helen Crawfurd, suffragette and communist activist (died 1954)
• 26 November – Sir John Stewart, 1st Baronet, of Fingask, whisky distiller (suicide 1924)

• 2 January – Alexander Bain, inventor (born 1810)
• 3 February – James Merry, ironmaster, race-horse breeder and Liberal MP (1859–74) (born 1805)
• 14 April – Margaret Macpherson Grant, heiress and philanthropist (born 1834)

• William McGonagall discovers himself to be a poet (according to his own account).^[8]
• Robert Louis Stevenson's first published works of fiction appear in magazines.

• Timeline of Scottish history
• 1877 in Ireland