Trinity College Nabbingo (TRICONA), is an all-girls boarding school covering grades 8–13 in Central Uganda.

[1] TRICONA was founded in 1942 by the White Fathers, who are affiliated with the Roman Catholic Church.

Thirty six years earlier, the same religious congregation had founded St. Mary's College Kisubi, a boys-only residential middle and high school along the Kampala-Entebbe Road.

TRICONA was established, having realized that the secondary education of Catholic girls needed to be addressed as well.

The objectives were to produce educated women who are "morally upright", "academically sound", "socially and physically capable" of serving God and their country.