The following is a list of events of the year 2021 in Colorado.

Incumbents

Governor: Jared Polis (D)

Events

March 22 — 2021 Boulder shooting: Nine civilians and a police officer are killed during a mass shooting at a King Soopers supermarket in Boulder. March 23 — The suspect in the previous day's mass shooting at a King Soopers supermarket in Boulder, which resulted in the deaths of ten people, is charged with ten counts of murder. April 6 — Colorado reports its first cases of the Lineage P.1 variant of SARS-CoV-2 in two people from Boulder County. May 9 — 2021 Colorado Springs shooting: Six people are killed by a gunman in a mass shooting during a birthday party at a residence in Colorado Springs. The gunman, who committed suicide at the scene, is believed to have been a boyfriend of one of the victims. August 2 — Denver Mayor Michael Hancock announces a COVID-19 vaccine mandate for school employees, contractors and volunteers. November 5 — Two hyenas at Denver Zoo test positive for COVID-19, marking the first time the virus has infected that animal worldwide. December 30 — Grass fires in Colorado, prompt the evacuation of the town of Superior and the cities of Louisville and Broomfield.

References