| Clubname: | ES Mostaganem |
| Fullname: | Espérance Sportive de Mostaganem |
| Nickname: | Les Verts, ESM |
| Founded: | 1940 |
| Ground: | Mohamed Bensaïd Stadium |
| Capacity: | 18,000 |
| League: | Ligue 1 |
| Season: | 2023–24 |
| Position: | Ligue 2, Centre-west Group, 1st (promoted) |
| Current: | 2024–25 ES Mostaganem season |
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Espérance Sportive de Mostaganem (Arabic: الترجي الرياضي لمستغانم), known as ES Mostaganem or simply 'ESM for short, is an Algerian football club in Mostaganem. The club was founded in 1940 and its colours are green and white. Their home stadium, Mohamed Bensaïd Stadium, has a capacity of 37,000 spectators. The club is currently playing in the Algerian Ligue Professionnelle 1.
On Mars 25, 2018, ES Mostaganem were promoted to the Algerian Ligue 2 after winning 2017–18 Ligue Nationale du Football Amateur "Group West".[1]
On 28 May 2022, ES Mostaganem returned to the Algerian Ligue 2.[2]
On 28 May 2024, ES Mostaganem returned to the Algerian Ligue Professionnelle 1 after 25 years of absence.[3] [4]
Runners-up: 1962–63, 1964–65
Champions:: 2023–24
Champions: 2007–08, 2017–18, 2021–22