John Somerville, 4th Lord Somerville

John Somerville, 4th Lord Somerville, (c.1484-1523), was a Lord of the Parliament of Scotland. John was the eldest son of William Somerville, Master of Somerville, who was the son of John Somerville, 3rd Lord Somerville and Marjory Montgomerie. He was succeeded by his brother Hugh.

According to the 17th-century family history written by James, 11th Lord Somerville, this Lord John was an ineffectual character, and his affairs were managed by his relations as tutors and curators. The historian only found one charter signed by John at Edinburgh in 1510 connected with his coming-of-age, and assumes the Lord spent most of his life at Cowthally Castle near Carnwath. There is no record of John attending Parliament.