The Golfing Union of Ireland (GUI) (Irish: Aontas Gailf na hÉireann (AGÉ)) is the governing body for men's and boy's amateur golf across the island of Ireland (the female equivalent is the Irish Ladies Golf Union). It represents 400 golf clubs with over 160,000 members and has strong relations with The R&A, which is the global governing body of golf outside the United States and Mexico. The GUI was established in 1891 and was the first national golfing union to be established anywhere in the world. The GUI organises the Irish Amateur Open Championship, founded in