Cancel, cancellation, canceled, or cancelled may refer to:
Business Project cancellation, in government and industry Cancellation (mail), a postal marking applied to a stamp or stationery indicating the item has been used Cancellation (insurance), the termination of an insurance policy Flight cancellation and delay, not operating a scheduled flight
Sociology Cancel culture, boycotting and ostracism calling out offensive behavior on social media or in real life
Technology and science Cancel leaf, a bibliographic term for replaced leaves in printed books Cancellation property, the mathematical property if a×b = a×c then b = c Cancelling out, a technique for simplifying mathematical expressions Catastrophic cancellation, numerical error arising from subtracting approximations to nearby numbers Noise cancellation, a method for reducing unwanted sound Phase cancellation, the effect of two waves that are out of phase with each other being summed Cancel message, a special message used to remove Usenet articles posted to news servers Cancel character, an indication that transmitted data are in error or are to be disregarded Resolution rule, in propositional logic a valid inference rule that produces a new clause by two clauses containing complementary literals. Cancellable (linguistics), a property of implicatures and presuppositions
Entertainment Cancellation (television), the termination of a television series "Cancelled" (South Park), a 2003 episode of the TV series South Park Cancelled (Shameless), an episode of the American TV series Shameless "Canceled" (Nikita), a 2013 episode of Nikita Canceled (film), a Swedish horror film
Music "Canceled" (song), a 2020 song by Larray Cancelled (EP), a 2024 EP by Mötley Crüe "Cancelled!", a 2025 song by Taylor Swift from the album The Life of a Showgirl "Cancelled", a 2020 song by Kiana Ledé from the album Kiki "Cancelled", a 2021 song by Slowthai from the album Tyron "Cancelled", a 2021 song by Attila from the album Closure
People and characters Robinson Cancel (born 1976), baseball catcher Rafael Cancel Miranda (born 1930), political activist An alternate name for the archangel Camael
Government Cancellation of removal, a form of immigration relief available to aliens in the United States who be otherwise inadmissible or deportable Cancellation of nationality
See also Mitigation Nullification (disambiguation)