| The Endowed School | |
| Type: | School |
| Location: | Newport, Wales |
| Coordinates: | 51.6102°N -2.9562°W |
| Gbgridref: | ST 33885 90583 |
| Designation1: | Grade II* |
| Designation1 Offname: | The Endowed School |
| Designation1 Date: | 11 July 1951 |
| Designation1 Number: | 2984 |
| Designation1 Free1name: | Community |
| Designation1 Free1value: | Caerleon |
| Designation2 Free2name: | Principal area |
| Designation2 Free2value: | Newport |
| Built: | 1724 |
Caerleon Endowed School, (also known as The Endowed School, Caerleon, Caerleon Charity School, Williams Charity School and Caerleon Junior School) dates from 1724. At that point, the house was a junior school that was funded by a bequest from Charles Williams. The school became part of the state education system in 1948 under the 1944 Education Act. The school was designated a Grade II* listed building in 1951.
The bequest was for "30 boys and 20 girls of the poorer sort", but the trustees reduced this to 20 boys and 10girls. From 1724 to 1948 the school had only nine headmasters. The left and right wings of the buildings included houses for the school master and school mistress respectively.
John Newman, in his Gwent/Monmouthshire volume of the Pevsner Buildings of Wales series, describes the school as "educational bounty on an exceptional scale for the 18th century". The layout (a half H) become a model for later schools in Wales.