Ysgol Gynradd Gymraeg Gellionnen
| School name | Ysgol Gynradd Gymraeg Gellionnen |
| Postcode | SA6 5HE |
| Full address | Gellionnen Road Clydach Swansea SA6 5HE |
| School district | Swansea |
| Phone | 01792 845489 |
| Website | https://www.ygg-gellionnen.co.uk/ |