| Ysgol Dyffryn Nantlle | |
| Motto: | Delfryd Dysg Cymeriad |
| Motto Translation: | Education Builds Character |
| Streetaddress: | Ffordd Y Brenin |
| County: | Gwynedd |
| Country: | Wales |
| Founded: | 1898 |
| Headmistress: | Rhian Jones |
| Postalcode: | LL54 6RL |
| Age Range: | 11-18 |
| Enrollment: | 388 (2023) |
| Language: | Welsh, English |
Ysgol Dyffryn Nantlle is a bilingual secondary school for pupils aged between 11 and 18 years. It is situated in Penygroes, Gwynedd in Gwynedd, North Wales. The school serves the village of Penygroes and the surrounding rural area.[1] As of 2023, there were 388 pupils enrolled at the school.[2]
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78 per cent of pupils come from homes in which Welsh is the main language of the household. Nearly all pupils are able to speak Welsh to first language level. Despite the school having a number of students who can't speak Welsh, second language Welsh classes are not offered until year 10.
On the school's badge, the words 'Delfryd Dysg Cymeriad' are inscribed, which translates to "The ideal of education is to build character" or more concisely "Education Builds Character". The school badge was devised by a former art teacher at the school, John Davies.[3]
There are four registration classes in each school year, Y, D, N and P. There are also four school houses, Silyn, Dulyn, Llifon and Llyfnwy, which draw their names from local rivers and lakes. Pupils are allocated in one each of those when enrolled in year 7. School houses compete annually in the sports day and in the historic school eisteddfod.
The school encountered controversy in 2021 when it refused to provide school meals to children who were more than 1p in debt. The school later changed its policy after a major backlash including criticism from footballer and school meals campaigner Marcus Rashford.[4]