Leslie Grant Nunamaker (January 25, 1889 – November 14, 1938) born in Malcolm, Nebraska, was a catcher for the Boston Red Sox (1911–14), New York Yankees (1914–17), St. Louis Browns (1918) and Cleveland Indians (1919–22).
He helped the Red Sox win the 1912 World Series and the Indians win the 1920 World Series. Until being injured in early in the 1912 against the St. Louis Browns he was Bill Carrigan's primary backup catcher for the Red Sox. He was also a backup catcher for the 1920 Indians.
In 12 seasons he played in 716 Games and had 1,990 At Bats, 194 Runs, 533 Hits, 75 Doubles, 30 Triples, 2 Home Runs, 216 RBI, 36 Stolen Bases, 176 Walks, .268 Batting Average, .332 On-base percentage, .339 Slugging Percentage, 674 Total Bases and 49 Sacrifice Hits.
He died in Hastings, Nebraska at the age of 49.