 Royale Union Saint-Gilloise |
| Address: | Brusselsesteenweg 223-1190 Vorst |
| Telephone: | 02-544 03 16 |
| Fax: | 02-544 03 17 |
| Founded: | 1-Nov-1897 |
| President: | Alex MUZIO |
| Official website: | www.rusg.brussels |
| E-mail: | rusg@rusg.be |
| Manager: | David HUBERT |
| Name: | Joseph Marienstadion |
| Capacity: | 9,500 |
| Pro League 2025/26 | |
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| 30-Nov-2025 | Pro League (16) | Anderlecht | 1-0 | Union Saint-Gilloise |
| 03-Dec-2025 | Beker van België (r8) | Union Saint-Gilloise | 2-1 | Zulte-Waregem |
| 06-Dec-2025 | Pro League (17) | Union Saint-Gilloise | 1-1 | AA Gent |
| 09-Dec-2025 | CL (r1gr6) | Union Saint-Gilloise | 2-3 |  Marseille |
| 14-Dec-2025 | Pro League (18) | Charleroi | 1-1 | Union Saint-Gilloise |
| 20-Dec-2025 | Pro League (19) | Union Saint-Gilloise | 2-0 | Zulte-Waregem |
| 26-Dec-2025 | Pro League (20) | Cercle Brugge | 1-1 | Union Saint-Gilloise |
| 14-Jan-2026 | Beker van België (qf) | Dender EH | 0-2 | Union Saint-Gilloise |
| 17-Jan-2026 | Pro League (21) | Union Saint-Gilloise | - | KV Mechelen |
| 21-Jan-2026 | CL (r1gr7) |  Bayern München | - | Union Saint-Gilloise |
| 24-Jan-2026 | Pro League (22) | Oud-Heverlee Leuven | - | Union Saint-Gilloise |
| 28-Jan-2026 | CL (r1gr8) | Union Saint-Gilloise | - |  Atalanta |
| 31-Jan-2026 | Pro League (23) | Union Saint-Gilloise | - | Club Brugge |
| 07-Feb-2026 | Pro League (24) | Union Saint-Gilloise | - | RAAL La Louvière |
| 14-Feb-2026 | Pro League (25) | Standard | - | Union Saint-Gilloise |
| 21-Feb-2026 | Pro League (26) | Union Saint-Gilloise | - | Antwerp |
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