Lieutenant Colonel Sir Martin Alexander Lindsay, 1st Baronet, (22 August 1905 – 5 May 1981) was a British Army officer, polar explorer, politician and author.
He first came to national attention in the 1930s, as a Polar explorer in Greenland.
His front-line service during the Second World War, during which he commanded a battalion and was decorated for bravery, further added to his reputation.
Immediately after the war he went into politics and served as a Member of Parliament for nearly two decades.
In 1962, he was awarded a Baronetage of the United Kingdom, being created Baronet of Dowhill in the County of Kinross.