Look up unholy alliance in Wiktionary, the free dictionary.
Unholy Alliance may refer to:
- Unholy alliance (geopolitical), when political antagonists temporarily join together to fight a common enemy
- The Unholy Alliance (professional wrestling), an Extreme Championship Wrestling tag team
- The Unholy Alliance Tour, an annual heavy metal tour
- The Unholy Alliance (TV series), a 2017 Hong Kong television drama
- "Unholy Alliance", Parts One and Two, episodes of Highlander: The Series