16 May is the 136th day day of the year (137th in leap years). There are 229 days remaining in the year.
- Year Unknown: B. Dunstan's check-out of Quidditch Through the Ages from the Hogwarts Library ends.
- 2014: 2014 Quidditch World Cup - USA VERSUS JAMAICA: USA won 240* to 230. The result was under investigation as the Jamaican Keeper Kquewanda Bailey collapsed shortly before the last goal, but the results were later upheld.