1021 (disambiguation)

1021 (MXXI) is a number in the 1000s number range.

1021 or variation may also refer to:


 * Chronology
 * 1021 CE, A.D. 1021, the 1021st year of the Common Era
 * 1021 BCE, 1021 B.C., the 1021st year before the Common Era


 * Places
 * 1021 Flammario, the 1021st asteroid catalogued


 * Legislation
 * United Nations Security Council Resolution 1021
 * Philippine Proclamation 1021


 * Objects by number
 * USS Courtney, US Navy destroyer escort #1021
 * German submarine U-1021, Nazi Germany Kriegsmarine U-boat #1021
 * Falcon 9 booster B1021, SpaceX Falcon 9 first stage booster core #1021
 * Farman F.1021, an experimental aircraft from 1930s France


 * Other uses
 * Code page 1021 (CH7DEC), a computer character set, the Swiss variant of DEC's National Replacement Character Set (NRCS)