December 20 is the 354th day (355th in leap years) of the year. There are 11 days remaining.
- 1916 – Tom Chantrell is born.
- 1967 – Kevin Rubio is born.
- 1968 – Joe Cornish is born.
- 1978 – Star Wars Weekly 46 published.
- 1994 – Dark Empire II 1 published.
- 1998 – Crimson Empire trade paperback published.
- 2000 – Qui-Gon and Obi-Wan: Last Stand on Ord Mantell 1 published.
- 2000 – Star Wars Tales 6 published.
- 2001 – The Cartel's Gift article published on Wizards of the Coast website.
- 2007 – A Wretched Hive (Dawn of Defiance) released.
- 2011 – Star Wars: The Old Republic released.
- 2011 – Star Wars: The Old Republic Explorer's Guide released.
- 2012 – Star Wars: The Card Game released.
- 2017 – Doctor Aphra (2016) 15 published.
- 2017 – Poe Dameron 22 published.
- 2017 – Star Wars Rebels Magazine 39 published.
- 2019 – Star Wars: Episode IX The Rise of Skywalker released.
- 2019 – The soundtrack of The Rise of Skywalker released.
- 2019 – Star Wars: The Rise of Skywalker: The Galactic Guide published.
- 2019 – Star Wars: The Rise of Skywalker: The Visual Dictionary published.
- 2019 – Star Wars: The Galactic Explorer's Guide published.
- 2023 – Darth Vader (2020) 41 published.
- 2023 – Doctor Aphra (2020) 39 published.
- 2023 – Revelations (2023) 1 published.
- 2023 – The High Republic (2023) 2 published.
