Matra Marconi Space (MMS) was a franco-british aerospace company.

Established in 1990 as a joint venture between the space and telecommunication divisions of the Lagardère Group (Matra Espace) and the GEC group (Marconi Space Systems).

Acquired British Aerospace Space Systems in 1994.

In 2000, merged with the space division of DaimlerChrysler Aerospace AG (DASA) to form Astrium.