1913 U.S. National Championships – Men's singles

Men's singles
1913 U.S. National Championships
Champion Maurice McLoughlin
Runner-up R. Norris Williams
Score6–4, 5–7, 6–3, 6–1

Maurice McLoughlin defeated R. Norris Williams 6–4, 5–7, 6–3, 6–1 in the final to win the men's singles tennis title at the 1913 U.S. National Championships. The event was held at the Newport Casino in Newport, R.I. in the United States. There were more than 128 players in the draw.