Ysgol Gyfun Gŵyr is a Welsh-medium secondary school for pupils aged between 11 and 19 years.

[2] As of 2023, Ysgol Gyfun Gŵyr had 1113 pupils enrolled at the school, with 27.5 per cent of those coming from Welsh-speaking homes.

[3][4] Notable past students include footballer John Hartson, soprano Elin Manahan Thomas and UFC fighter Brett Johns.

[citation needed] In 2001 the school, as the only Welsh-speaking secondary school in Swansea, was encountering capacity problems, having to accommodate over 1,000 pupils in buildings that were designed for a capacity of 750.

However parents and Staff protested against the move, resulting in a second Welsh-language school in Swansea (Ysgol Gyfun Gymraeg Bryn Tawe) According to the latest inspection report from Estyn the school has a GCSE pass rate of 76% (based on 5 GCSEs, grades A-C), which puts it in 5th place in Wales or in the top 10%.