Viacom (disambiguation)

Viacom, an acronym of Video & Audio Communications, may refer to:


 * Viacom (pre-2006), an American media conglomerate which was later split in two on December 31, 2005, this being spun off from the original Viacom, and CBS Corporation, its legal successor
 * ViacomCBS, a corporation formed by the merger of CBS Corporation and the second incarnation of Viacom on December 4, 2019