| Alexandra High School | |
| Motto: | Summa Diligentia Laboro |
| Motto Translation: | "I strive to work with diligence" |
| Established: | 1960 |
| Type: | Semi-Private, Co-Educational |
| Locale: | Suburban |
| Grades: | 8–12 |
| Head Name: | Principal |
| Head: | A. Pillay |
| Head Name2: | Deputy Principal |
| Head2: | N.Y Xaba |
| Country: | South Africa |
| Students: | Approximately 1000 pupils - Girls: 378, Boys: 622 |
| Ratio: | 1:32 |
| Colors: | Maroon and Blue |
| Sports: | Rugby, Netball, Cricket, Hockey, Soccer, Athletics, Swimming |
| Mascot: | Ellie the Elephant |
| Tuition: | School fees: R 21 000 p.a Boarding Fees: Full Time - R 70 000 p.aWeekday - R56 000 p.a |
Alexandra High School as AHS is a semi-private public high school in Pietermaritzburg, KwaZulu-Natal, South Africa. It offers a co-educational environment.
Alexandra High School is named after Queen Alexandra Caroline, Queen Consort of the United Kingdom. It opened on 23 February 1960. Though it was initially a whites-only, all-boys school, the first non-white pupil was admitted in June 1991. Alexandra High School became co-educational at the beginning of 1992. The school colours are maroon and blue.
Mr Udal, the first headmaster, designed the school emblem, from the royal coat of arms of Queen Alexandra. Mr Udal took the Maltese Cross to incorporate in the badge. Mr Lee Boyd, M.E.C. for Education in the N.P.A. at the time of the school's inception and ex-mayor of Durban was a Knight of da Game in the Roman Catholic Church. The cross was given to Boyd's House as their symbol.
Then Mr Downs, Mayor of Pietermaritzburg, was approached for permission to use part of the city's coat of arms – hence the Elephant – emblem of Downs House.
Mr Allison, three times mayor, M.P.C. and freeman of the city, a neighbour of the school who took a great interest in Alex, had Allison's House named after him, and the Stars from the city's coat of arms formed the symbol of the house.
Shepstone House was named after the Administrator of Natal at the time of the purchase of land for the school, and as he had attended Queen Elizabeth's coronation, the crown was to be Shepstone's symbol.
Succeeding Mr Shepstone as Administrator was Mr Trollip. He was approached for permission to use part of the Natal badge – hence the Wildebeest (provided they faced the correct way and had white manes and tails). The wildebeest are the symbol of Trollip's House.
For the motto, Mr Udal's signet ring bore the words, Tant Que je Puis – archaic French, meaning "I do my best". Mr Lamond of Maritzburg College translated this into the Latin, Summa diligentia laboro. Then Mr Udal and his wife chose the colours of sky blue and maroon, and with the help of a local outfitter, devised blazers, badges, colours, rugby jerseys and all the other needs of a school.
The plaque was designed and built by the late Miss Syliva Baxter. It took months of work to mould, colour and bake the clay. It was fired in forty six pieces of ceramic clay, measuring 4 metres by 2 metres and its mass is over a ton. Metallic oxides were used to give it colour.
The plaque was unveiled by the late Senator A E Trollip, then Administrator of Natal, when the school was officially opened on 25 September 1964.