| Dagoretti High School | |
| Motto: | Elimu Ni Mali |
| Established: | 1962 |
| Type: | Provincial, public |
| City: | Nairobi |
| Country: | Kenya |
| Campus: | Dagoretti, Nairobi |
| Students: | approx 1000 |
| Colors: | Maroon, white, green, grey |
Dagoretti High School is a high school in the Dagoretti area of Nairobi county, Kenya. It is a Provincial School located 16 Kilometres from the Nairobi City centre along the Nairobi-Kikuyu Road. The School has eight streams (as from 2018) B, G, Y, P, W, C, M, R. It is a boarding school with a student population of roughly 1700.
Dagoretti High School was founded in 1962. The school used to be a colonial detention camp where many MAU MAU detainees were incarcerated. It was popularly known as Dago or DITCHEZ. Dagoretti High School was started through the initiative of the first Member of Parliament for Dagoretti Constituency Dr Njoroge Magana Mungai.The first Headmaster of the school was Mr N C Bhatt.
Dagoretti High School dominated the Traditional Dance category of the Kenya National Drama festivals throughout the 1990s holding the High Schools Category for many years and in 2004 and 2005 Drama Festivals the school made history by winning consecutive drama dance titles. Also the school has clubs that help involve the students in social activities and campaigns. e.g. SCAD (Students Campaign Against Drugs),[1] St. John Club, Computer Club, Science Club etc.