William Lowell Hill (October 17, 1855 – August 2, 1922) was a United States Navy officer and a recipient of the United States military's highest decoration, the Medal of Honor. He was awarded the medal as an enlisted sailor for rescuing a drowning shipmate in 1881. Hill went on to serve in the Spanish–American War and reached the warrant officer rank of chief boatswain. His lifelong Navy career finished with his command of two prison ships at Portsmouth Naval Shipyard.