- Source: List of shipwrecks in December 1821
- List of shipwrecks in December 1821
- List of shipwrecks in 1821
- List of shipwrecks in June 1821
- List of shipwrecks in August 1821
- List of shipwrecks in March 1821
- List of shipwrecks in July 1821
- List of shipwrecks in January 1821
- List of shipwrecks in October 1821
- List of shipwrecks in November 1821
- List of shipwrecks in September 1821
The list of shipwrecks in December 1821 includes ships sunk, foundered, grounded, or otherwise lost during December 1821.