Sir Alexander Erskine (died 3 April 1756) was the 5th Earl of Kellie.
He was the son of Alexander Erskine, 4th Earl of Kellie and Anne Lindsay.[1]
He married first on 29 May 1726 in Carnbee, Fife, Scotland to Louisa Moray, daughter of William Moray.[2]
He married secondly on 12 Oct 1731 to Janet Pitcairn.
His daughter Janet married Sir Robert Anstruther, 3rd Baronet of Balcaskie.[3]
His son and heir Thomas was a gifted composer.