Claret School of Quezon City (Filipino: Paaralang Claret ng Lungsod Quezon), also referred to by its acronym CSQC or colloquially as Claret, is a private Catholic basic education institution run by the Missionary Sons of the Immaculate Heart of Mary in Quezon City, Philippines.

The school also has a Child Study Center which allows girls up to the Kindergarten level.

The Claretian fathers dreamt of building a school in the Philippines after they had started their missions in Zamboanga and Basilan.

José Querexeta, CMF, former bishop of the Territorial Prelature of Isabela, acquired a 29,101 square meter lot in UP Village, Diliman, Quezon City.

In the 1970s the school upgraded the old covered court into a gymnasium, and the Immaculate Heart of Mary Parish church was built.

From 1981 until 1995, supervision of the school was transferred to Dr. Enrique Coralejo, a lay director.

[1] The 1990 Luzon earthquake forced the school to make reinforcements to the main buildings.

Felimon P. Libot, CMF became the first Claretian priest of Filipino descent to be assigned as school director.

Domingo Moraleda, CMF, former school director, died in an accident in Mabalacat, Pampanga.

From Kindergarten, the curriculum ladder extends to the Preparatory (prep) level which was integrated into the Grade School in 1967.

In sports, Claret School won its first Philippine Athletic Youth Association (PAYA) Basketball Championship in the 1974–1975 season, beating San Agustin in the Finals.

Claret School of Quezon City is noted for its football program which was established in the 1970s by priests Luis Rey and Santiago Gonzales.

Bob Salvacion, coach and a former player himself, is a major contributor to the program establishing the Claret Football Center in 1981.