| Belcina | |
| Name Other: | Békény-patak, Belchia |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Harghita County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Gheorgheni, Joseni |
| Source1: | Hășmaș Mountains |
| Mouth: | Mureș |
| Mouth Location: | Joseni |
| Mouth Coordinates: | 46.7034°N 25.4712°W |
| Tributaries Left: | Gherpătocul Mare, Gherpătocul Mic, Modoroș, Mogoș Biuc |
| Tributaries Right: | Cianod, Cetatea |
The Belcina (also: Belchia, Hungarian: Békény-patak) is a right tributary of the river Mureș in Transylvania, Romania. It flows through the town Gheorgheni, and joins the Mureș near the village Joseni.[1] Its length is 33km (21miles) and its basin size is 109km2.