NOS Audiovisuais (formerly ZON Lusomundo) is a Portuguese integrated media corporation founded in 1953, which has major interests in movie distribution, cinema theaters and media assets.

It was founded with the purpose of movie distribution, and had a very close relation with the biggest studios (it is currently the Portuguese licensee of United International Pictures, Walt Disney Studios Home Entertainment, Warner Home Video, Miramax Films and DreamWorks SKG).

In the early 1990s, it acquired TSF Rádio Notícias and minority stakes of TVI.

In 2007, PT Multimedia separated from PT Comunicações and became ZON Multimédia and this corporation was renamed ZON Lusomundo, in May 2014 it was renamed NOS, officially retiring the 61-year-old Lusomundo name.

This article about a Portuguese film distribution or production company is a stub.