Reginald Lindesay-Bethune, 12th Earl of Lindsay

Reginald Lindesay-Bethune, 12th Earl of Lindsay, JP, DL (18 May 1867 – 14 January 1939), known as Viscount Garnock 1894-1917, was a Scottish nobleman.

The eldest son of the 11th Earl of Lindsay and Emily Marian Crosse, he succeeded his father in 1917, and assumed the additional surname of Lindesay in 1919.

He served with the 8th Hussars in South Africa in 1901-1902, and was promoted Major 19 October 1901. He later served with the East Riding of Yorkshire Yeomanry.

Lord Garnock was unsuccessful Conservative parliamentary candidate for Buckrose, East Yorkshire, in 1906. He was a Scottish representative peer in the House of Lords from 1917. He was also Master of Fife Fox Hounds.