| Clubname: | USM Aïn Beïda |
| Fullname: | Union sportive de la Médina Aïn Béïda |
| Nickname: | Les Hraktas |
| Founded: | 1943 (as Union sportive de la Médina Aïn Béïda) |
| Ground: | Ali Hamdi Stadium |
| Capacity: | 12,000 |
| Chrtitle: | President |
| Mgrtitle: | Head Coach |
| Manager: | M. Agoun |
| League: | Ligue Régional I |
| Season: | 2023–24 |
| Position: | Ligue Régional II, Constantine, 1st (promoted) |
| Current: | 2024–25 USM Aïn Beïda season |
| Pattern La1: | _blackshoulders |
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Union sportive de la Médina Aïn Béïda (Arabic: الإتحاد الرياضي لمدينة عين البيضاء), known as USM Aïn Béïda or simply USMAB for short, is an Algerian football club based in Aïn Béïda in Oum El Bouaghi Province. The club was founded in 1943 and its colours are white and black. Their home stadium, Ali Hamdi Stadium, has a capacity of 12,000 spectators. The club is currently playing in the Ligue Régional I.
Runners-up (1): 1996
1997 – Quarter-Finals
| Season | Competition | Round | Country | Club | Home | Away | Aggregate |
|---|---|---|---|---|---|---|---|
| 1997 | CAF Cup | R1 |  | Stade Malien | 1–0 | 1–1 | 2–1 |
| R2 |  | Asante Kotoko | 3–1 | 1–1 | 4–2 | ||
| QF |  | Atlético Petróleos | 0–2 | 1–3 | 1–5 |