Atresmedia Corporación de Medios de Comunicación, S.A., previously Grupo Antena 3, is a Spanish media group, present in the television, radio and filmmaking industries. Significant shareholders include Grupo Planeta and Bertelsmann.

Antena 3 is a Spanish terrestrial television channel part of Atresmedia, of which it is the flagship station. Its current headquarters are located in San Sebastián de los Reyes.