The John Frost School, formerly known as Duffryn High School (Welsh: Ysgol Uwchradd Dyffryn), is a comprehensive school on the south-western outskirts of Newport, south Wales.

In 2018 the Welsh-medium secondary school Ysgol Gyfun Gwent Is Coed moved into buildings adjoining the John Frost School.

[2] As of 2019, the head teacher is Mark Tucker.

John Frost (1784−1877) was a Chartist and the leader of the Newport Rising.

[4] In August 2019, in the BBC TV series Who Do You Think You Are?, the school was visited by TV producer Michael Whitehall and his son, actor and comedian Jack Whitehall, who were revealed to be descendants of Thomas Phillips, mayor of Newport at the time of the Rising.