Croke Park (Irish: Pairc an Chrócaigh, IPA:) in Dublin, Ireland is the principal stadium and headquarters of the Gaelic Athletic Association (GAA), Ireland's biggest sporting organisation. The stadium is in the heart of the city, a 15 minute walk from the main thoroughfare O'Connell Street.

Since 1884 the site has been used primarily by the GAA to host Gaelic games, most notably the annual finals of the All-Ireland Senior Football Championship and Senior Hurling Championship. Music concerts by major international acts have also been held in "Croker", as it is often called by Dubliners, and it hosted the opening and closing ceremonies of the 2003 Special Olympics. During the refurbishment of Lansdowne Road the stadium is also hosting the Irish national rugby union and soccer teams.

Following a redevelopment programme started in the 1990s, Croke Park has a capacity of 82,300,making it the third largest stadium in Europe and the current largest stadium in the Six Nations Championship. It has also held the world record for largest attendance at a club/provincial rugby union match since 2 May 2009.