École secondaire publique Mille-Îles is a high school in Kingston, Ontario and was initially started as a French program within Kingston Collegiate and Vocational Institute (KCVI) in 1977.

The schools, although they kept their separate identities, welcomed students from kindergarten to grade 12.

[3] "The two French boards in Kingston — the Conseil des Ecoles Catholiques du Centre-Est de l’Ontario (CECCE) and the Conseil des Ecole Public de l’Est de l’Ontario (CEPEO) — will see close to $24 million to build the new combined facility for Mille-Iles Public Secondary School and Marie-Rivier Catholic Secondary School, which will also include the Centre Culturel Frontenac community hub.

[5] In March 2020, it was announced that the French community hub would not be ready until at least the 2021–2022 school year.

[6] The school motto is "felicitas per doctrinam," which means "happiness through learning."