William Ransom Johnson Pegram, known as "Willie" or "Willy", was an artillery officer in Robert E. Lee's Confederate Army of Northern Virginia during the American Civil War. He was mortally wounded in the Battle of Five Forks. He was the younger brother of Confederate General John Pegram, who was also killed in action. His grandfather, John Pegram, was a major general during the War of 1812.

The Battle of Five Forks was fought on April 1, 1865, southwest of Petersburg, Virginia, around the road junction of Five Forks, Dinwiddie County, at the end of the Siege of Petersburg, near the conclusion of the American Civil War.