Martin Lings (24 January 1909 – 12 May 2005), also known as Abū Bakr Sirāj ad-Dīn, was an English writer, Islamic scholar, and philosopher. He was a student of the Swiss metaphysician Frithjof Schuon and is recognized as an authority on the work of William Shakespeare.

He is best known for his bestselling biography Muhammad: His Life Based on the Earliest Sources, published in 1983 and still widely read today. Martin Lings was born in Burnage, Manchester, to a Protestant family and spent significant time in the United States during his youth due to his father's employment.

Lings attended Clifton College and later studied at Magdalen College, Oxford, where he obtained a BA in English Language and Literature. At Oxford, he was a student of C. S. Lewis, who became a close friend.