This article provides an overview of education in Wales from early childhood to university and adult skills. Largely state funded and free-at-the-point-of-use at a primary and secondary level, education is compulsory for children in Wales aged five to sixteen years old. It differs to some extent in structure and content to other parts of the United Kingdom, in the later case particularly in relation to the teaching of the Welsh language.

A secondary school or high school is an institution that provides secondary education. Some secondary schools provide both lower secondary education and upper secondary education, i.e., both levels 2 and 3 of the ISCED scale, but these can also be provided in separate schools.