Events that occurred on 9 September.
 On Earth
- 1922 - Tolkien's favourite artist, Pauline Baynes, is born.
- 1943 - Renowned scholar Tom Shippey is born.
- 1954 - J.R.R. Tolkien writes Letter 149.
- 1954 - J.R.R. Tolkien writes a letter to the Rector of the University of Liège.
- 2016 - Oxonmoot 2016 at St Antony's College.