Ysgol Brynhyfryd is a bilingual co-educational comprehensive school in the town of Ruthin in Denbighshire, North Wales. The school serves the community of Ruthin and the many surrounding villages including the rural districts of Corwen, Carrog and Gwyddelwern. The bilingual ethos reflects the community it serves.
Ysgol Gymraeg Gwynllyw is a Welsh-medium all age school located in Trevethin, Pontypool in Torfaen, Wales and named for Saint Gwynllyw. The school had 926 pupils on roll in 2017. The school changed its name from ‘Ysgol Gyfun Gwynllyw’ to ‘Ysgol Gymraeg Gwynllyw’ in 2022 to incorporate going from a High School to an all age school, the first in South East Wales.
Ysgol Gyfun Gymraeg Glantaf is a Welsh-medium coeducational secondary school in Llandaff North, a district in the north of Cardiff, Wales; it is the largest of its kind in the country. Of the three Welsh-medium secondary schools serving Cardiff, it was the first to be established; the others are Ysgol Gyfun Gymraeg Plasmawr and Ysgol Gyfun Gymraeg Bro Edern. Although all students speak Welsh and normally have received Welsh-language primary education, 68% come from homes where Welsh is not the first language.
Ysgol Bro Preseli is a Welsh 3-18 school in the village of Crymych, Pembrokeshire, Wales.
Ysgol Gyfun Gŵyr is a Welsh language medium secondary school in Gowerton, Swansea, Wales, with approximately 950 pupils as of 2016. It was established in 1984. Notable past students include footballer John Hartson, soprano Elin Manahan Thomas, Michelin Star Chef Paul Davies and UFC fighter Brett Johns.
Ysgol Gyfun Gymraeg Plasmawr is a Welsh-medium comprehensive secondary school in Cardiff. It opened in September 1998 as the second school of its kind in Cardiff. Its buildings had formerly belonged to Waterhall Secondary Modern School and more recently formed Ysgol Gyfun Gymraeg Glantaf's Lower School. The current headteacher is Dr Rhodri Thomas.
Ysgol Gyfun Llangefni is a bilingual community comprehensive school for pupils aged 11 to 18 years old located in Llangefni, Anglesey. Pupils come from the town of Llangefni and the surrounding villages and rural areas. The school opened in 1953 and currently has 686 students on roll.
Ysgol Syr Hugh Owen is a bilingual comprehensive secondary school for pupils aged 11–18. The school is situated in Caernarfon, Gwynedd, Wales. The school was established in 1894, the first to be built under the Welsh Intermediate Education Act 1889, which was heavily influenced by the educator Sir Hugh Owen, after whom the school was named.
Ysgol Brynrefail is a bilingual comprehensive school for pupils aged 11–18. It is situated in Llanrug in Gwynedd, north Wales. Most of the school's pupils come from the villages on Llanrug, Bethel, Llanberis and the surrounding rural areas.
Ysgol Gyfun y Strade is a Welsh medium secondary school and sixth form in the town of Llanelli, Wales. It opened in September 1977 as a comprehensive school for boys and girls. As of 2020, there were 1,177 pupils enrolled at the school.
Ysgol Gyfun Gymunedol Penweddig is a Welsh-language, community comprehensive school situated in Llanbadarn Fawr, Aberystwyth, Wales. The school was established in 1973. The school was the first Welsh language secondary school in Ceredigion and is named after the cantref of Penweddig, the northern part of the Kingdom of Ceredigion, between the rivers Dyfi and Ystwyth.
Ysgol Dyffryn Ogwen is a bilingual secondary school for pupils aged 11 to 19 years. It is situated in Bethesda in the Ogwen valley in Gwynedd, Wales. As of 2022, there were 454 pupils on roll at the school. Some of the buildings date from 1895 when a County School was established here, but the present comprehensive school dates from 1951. An extension to the school was opened by Professor Sir Idris Foster. The motto of the school is "Bydded goleuni"
Ysgol Tryfan is a bilingual comprehensive school for pupils aged 11–18, situated in Bangor, Gwynedd. 471 pupils were enrolled at the school in 2022.
Ysgol Gyfun Gymraeg Bro Myrddin is a Welsh-medium school in Carmarthenshire, Wales. It is situated near the village of Croesyceiliog, about 11⁄4 miles (2 km) south of Carmarthen. Myrddin, the Welsh name of the legendary figure Merlin, is traditionally associated with the town of Carmarthen, and Bro Myrddin means "Myrddin's country ".
Ysgol Eifionydd is a bilingual co-educational comprehensive school for 11-16 year-old pupils. It is situated in the town of Porthmadog, Gwynedd, Wales. The school serves the towns of Porthmadog, Cricieth and the rural villages of the area.
Ysgol Gymraeg Bro Morgannwg is a Welsh medium comprehensive school in the town of Barry in the Vale of Glamorgan, on the coast of south Wales. It is located adjacent to Barry Hospital.
Ysgol Gymraeg Pwll Coch is a large Welsh-medium primary school in the Leckwith area of western Cardiff, in Wales.
Ysgol Gyfun Gymraeg Bro Edern is an 11–18 mixed, Welsh-medium, community secondary school and sixth form in Penylan, Cardiff, Wales. The name 'Bro Edern' refers to Saint Edern who is commemorated in the name Llanedeyrn. Of the three Welsh-medium secondary schools serving Cardiff, it is the newest.
Ysgol Gyfun Emlyn is a mixed, community comprehensive school in Newcastle Emlyn, Carmarthenshire, Wales. It has around 445 pupils, catering for all abilities across an age range of 11 to 18 years.
Ysgol Bro Dinefwr is a bilingual secondary school for pupils aged 11–19 in Ffairfach, Carmarthenshire. As of 2016, the school had 1,182 pupils on roll, with approximately 200 of those pupils in the sixth form.
