Liaison
- A Little Night Music
- Affair
- Air Alliance
- Co-operation
- Collaboration
- Liaison (French)
- Liaison (TV series)
- Liaison Agency Flanders-Europe
- Liaison Committee (House of Commons of the United Kingdom)
- Liaison Committee (House of Lords)
- Liaison Committee on Medical Education
- Liaison Dunkerque-Escaut
- Liaison Pilot Badge
- Liaison aircraft
- Liaison officer
- Liaison pilot
- Liaison psychiatry
- Liaisons (Desperate Housewives)
- Liaisons dangereuses (disambiguation)
- Military Liaison Element
- Military liaison missions
- Pearl (drag queen)
- Special Liaison Unit
- Ultra (cryptography)