Portal:Sports/Selected anniversaries/May
- May 8, 1954 – The Asian Football Confederation, the governing body of association football in Asia, is founded
- May 15, 1908 – The International Ice Hockey Federation is founded in Paris as Ligue International de Hockey sur Glace
- May 17, 1875 – The first Kentucky Derby is held, with Aristides winning the race
- May 22, 1987 – The inaugural Rugby World Cup (2011 match pictured), co-hosted by New Zealand and Australia, begins
- May 23, 1985 – The first Games of the Small States of Europe, a multi-sport event for European microstates, begins in San Marino