In telecommunications, quadruple play or quad play is a marketing term combining the triple play service of broadband Internet access, television and telephone with wireless service provisions. This service set is also sometimes referred to as "The Fantastic Four".

In addition to being a testament to technological convergence, quadruple play also involves a diverse group of stakeholders, from large Internet backbone providers to smaller startups.

Advances in LTE and other technologies are rapidly improving the ability to transfer information over a wireless link at various combinations of speeds, distances, and non-line-of-sight conditions.

"Mobile service provisions" refers in part to the ability of subscribers to purchase mobile phone like services, as is often seen in co-marketing efforts between providers of landline services. It also reflects the ambition to gain wireless access on the go to voice, internet, and content/video without tethering to a network via cables.