Viacom, an acronym of Video & Audio Communications, may refer to:
- Viacom (1952–2006), an American media conglomerate
- Viacom (2005–2019), a company spun off from the original Viacom
- Viacom Media Networks, the American television and publishing division of Viacom
- Viacom International Media Networks, the international television and publishing division of Viacom
- Viacom International Media Networks The Americas, the division of Viacom International Media Networks in Latin America
- Viacom 18, the joint venture between Viacom and TV18 in India
- Viacom18 Motion Pictures, the film division of Viacom 18
- National Amusements
- ViacomCBS, corporation formed via the merger of CBS Corporation and the second incarnation of Viacom on December 4, 2019
See also[]
- CBS Corporation (2006–2019), the legal successor to the original Viacom
- List of assets owned by ViacomCBS (since 2019), the company that formed by re-merger between CBS Corporation and the second Viacom