Bute and Northern Ayrshire (UK Parliament constituency)

Bute and Northern Ayrshire was a county constituency of the House of Commons of the Parliament of the United Kingdom from 1918 to 1983.

It elected one Member of Parliament (MP) by the first past the post voting system.

The constituency was formed by combining Buteshire (which historically included the islands of Arran, Great Cumbrae and Little Cumbrae) with part of North Ayrshire.

1918–1950: The county of Bute, and the county district of Northern Ayr, inclusive of all burghs therein except in so far as included in the Ayr District of Burghs.

The political parties had been making preparations for an election to take place from 1939 and by the end of this year, the following candidates had been selected;