Henry Cooke McIlveen (Irish)
- Bats Left, Throws Left
- Height 5' 11½", Weight 180 lb.
- School Pennsylvania State University
- Debut July 10, 1906
- Final Game May 6, 1909
- Born July 27, 1880 in Belfast, Ireland
- Died October 18, 1960 in Lorain, OH USA
McIlveen pitched for the 1906 Pittsburgh Pirates (and hit .400 in 5 at-bats), and then came back in 1908 and 1909 as an outfielder. He mostly backed up the 36-year-old Willie Keeler in 1908 in right field.
He went to Pennsylvania State University from 1903 to 1906, at the same time as Birdie Cree, who became his major league teammate in 1908 and 1909. He was 56-18-3 as head coach of Penn State from 1907-1910.
He hit .303 for Steubenville in 1907.