Viacom
Viacom could refer to:
 Viacom (1971-2005), the original company
 Viacom (2006-2019), the "new" Viacom after splitting with CBS
 ViacomCBS, the remerged company (2019–2022); subsequently rebranded as Paramount Global
 Viacom New Media, a publisher of video games and other electronic entertainment software