December 9 is the 343rd day (344th in leap years) of the year. There are 22 days remaining.
- 1948 – Robert Blalack is born.
- 1960 – Jeff "Swampy" Marsh is born.
- 1967 – Bob Roth is born.
- 1970 – Kevin Hearne is born.
- 1998 – Crimson Empire II: Council of Blood 2 published.
- 2000 – The Field Museum in Chicago holds a symposium titled "The Stories Behind Star Wars and Sue: Envisioning Environments in Film and at The Field".
- 2008 – The Complete Star Wars Encyclopedia published.
- 2008 – The Clone Wars: Wild Space published.
- 2009 – The Clone Wars 11 published.
- 2014 – The Inquisitor's Trap published.
- 2014 – The Star Wars: The Old Republic expansion Shadow of Revan is released to the public.
- 2014 – Star Wars Insider 154 published.
- 2015 – Star Wars Annual (2015) 1 published.
- 2015 – "Legacy" airs on Disney XD.
- 2016 – Entertainment Weekly's Ultimate Guide to Rogue One published.
- 2018 – "Station Theta Black" airs on Disney Channel.
- 2020 – Star Wars (2020) 9 published.
- 2020 – Star Wars: The Old Republic: Onslaught Update 6.2 "Echoes of Vengeance" released.
- 2022 – "Snare" published