Final Battle (2021) was a professional wrestling pay-per-view produced by American promotion Ring of Honor (ROH). It took place on December 11, 2021 at the Chesapeake Employers Insurance Arena in Baltimore, Maryland. The event was the 20th under the Final Battle chronology, and was billed as "The End of an Era", as it was the last Ring of Honor event to be held before the company went on hiatus, eventually resuming operations in April 2022.