Spilt Milk, a play on the idiom ', may refer to:
- Spilt Milk (Jellyfish album), 1993
- Spilt Milk (Kristina Train album), 2009
- "Spilt Milk" (American Horror Story), a 2013 episode of the series
- Spilt Milk (festival), held in Canberra, Australia
- Spilt Milk (novel), by Chico Buarque, 2009
- Spilt Milk, a 1972 album by Laurie Styvers
- Spilt Milk, a 2011 music piece composed by Stefan Abingdon
- "Spilt Milk", a 2022 song by Tommy Trash and Benson
- Spilt Milk, a 2024 film directed by Brian Durnin