Patrick Bowes-Lyon (5 March 1863 – 5 October 1946) was a British tennis player, barrister and uncle of Elizabeth Bowes-Lyon, mother of Queen Elizabeth II.

As a younger brother of Claude Bowes-Lyon, 14th Earl of Strathmore and Kinghorne, who was Elizabeth Bowes-Lyon's father, he was a great-uncle of Queen Elizabeth II and Herbert Bowes-Lyon who also played tennis.

He stood as the Conservative Party candidate for Barnard Castle.

The fifth of seven sons and one of the eleven children of Claude Bowes-Lyon, 13th Earl of Strathmore and Kinghorne and of Frances Dora Smith, he married Alice Wiltshire, daughter of George Wiltshire, on 9 August 1893.

He and his wife Alice had four children: Besides being a British tennis player, he was also known as Queen Elizabeth The Queen Mother's paternal uncle.