| Saint Martin's School | |
| Motto: | Latin: Non Recuso Laborem |
| Motto Translation: | I do not shirk work |
| Established: | 1908 |
| Type: | Private |
| Locale: | Suburban |
| Grades: | 000 - 12 |
| Head Name: | Acting Headmaster |
| Head: | Warren Venter |
| Address: | 114 Victoria Street |
| Region: | Klipriviersberg |
| City: | Johannesburg |
| Zipcode: | 2190 |
| Country: | South Africa |
| School Colors: | Blue, Maroon and White |
| Free Label: | Fees |
| Free: | R 115 000 p.a. (boarding) R 65 000 to R120 000 p.a. (tuition) |
St Martin's School is an Anglican private co-educational school in The Hill, Johannesburg, South Africa.
St. Martin’s School traces its origins back to the foundation of St. Agnes School for the training of domestic helpers in 1908. A few years later in 1911, St. Peter’s Priory and College were added, offering a boarding-based high school education to the young men who came from all over South Africa. The College was run by the Anglican Order of the Community of the Resurrection. Trevor Huddleston, one of the priests of the community was based at St Peter's for a number of years, and it was he who gave Hugh Masekela his first trumpet, which he acquired from Louis Armstrong whilst on a trip to the USA.
St. Peter's College soon became known as the "Black Eton" where academic achievements were espoused. The list of the early alumni includes Oliver Tambo, Fikile Bam and Masekela.
The apartheid policies of the National Party regime, specifically the Bantu Education Act put pressure on the school and it was closed in 1956. However, the Anglican Church ensured that education continued and the school reopened in 1958 as St. Martin's School.
Founded as a boys' school, St Martin's became the established Anglican Diocesan School for the south of Johannesburg. In 1978, the school became a co-educational institution.
A Preparatory School was opened in 1971, and is situated on a picturesque campus in The Hill, overlooking Moffat Park. In December 2022, the High School was relocated from the Rosettenville campus to the Preparatory School campus at East Road in the Hill, which is now home to both the Preparatory School and High School.
Since the multiplication of the Anglican Diocese of Johannesburg in 1990, the school has been the Diocesan School for the Diocese of Christ the King. The bishop of the diocese is the visitor to the School.
The school celebrated its Diamond Jubilee in 2018.
The bishop of Johannesburg was the visitor to the school until 1990, and these were:
From 1990 onwards the visitor to the school is the bishop of the Diocese of Christ the King.