Ireland is a nation that covers approximately five-sixths of the island of Ireland, off the coast of Europe.
Players of Irish origin were extremely numerous in the early days of baseball.
- David L. Fleitz: The Irish in Baseball: An Early History, McFarland, Jefferson, NC, 2009. ISBN 978-0-7864-3419-0
- Patrick R. Redmond: The Irish and the Making of American Sport, 1835–1920, McFarland, Jefferson, NC, 2014. ISBN 978-0-7864-7553-7