can refer to:
- Cotillion, a formal presentation of young ladies, debutantes, to polite society.
- Cotillion (dance), a French dance.
- Cotillion (Malazan), a character in the Malazan Book of the Fallen series
- Cotillion Records, a record label
- Cotillion (music), Irish music group
- Cotillion (novel), a Regency novel by Georgette Heyer
- Cotillion Hall, a historic dance hall in Portland, Oregon, United States
- HMS Cotillion, a name of several Royal Navy ships