Events that occurred on 3 May.
 On Earth
- 1966 - J.R.R. Tolkien writes a letter to Roger Verhulst.
- 1968 - Author Michael D.C. Drout is born.
- 1981 - The ninth episode of the 1981 radio adaptation of The Lord of the Rings is aired on BBC Radio 4.
- 1989 - Voice actor William Squire dies.
- 1996 - Author and academic Charles Moorman dies.
- 2009 - The fan film The Hunt for Gollum is released online.
- 2018 - Beren and Lúthien is published in paperback.
- 2019 - The biographical film, Tolkien, is released in the United Kingdom.
 In Arda
- There are no known events for this date.