November 21 is the 325th day of the year (326th in leap years), with 40 days remaining.
- 1958 — Diana Lumbrera is born.
- 1959 — Michael Tenneson is born.
- 1962 — Jeffrey Feltner is born.
- 1983 — Norman Bernard is apprehended.
- 2021 — Ali Akbar Khorramdin died.