Avenir Sportif de La Marsa (Arabic: المستقبل الرياضي بالمرسى), known as AS Marsa or simply ASM for short, is a Tunisian football club based in Tunis.

The club was founded in 1939 and its colours are green and yellow.

Their home stadium, Abdelaziz Chtioui Stadium, has a capacity of 6,500 spectators.

The club is currently playing in the Tunisian Ligue Professionnelle 2.

AS Marsa supporters help is needed to develop this section.