The Matthew Arnold School is a British co-educational secondary school in Staines, a suburb of London, taking pupils from the age of 11 ("Year 7") to 16 ("Year 11").
It is now perhaps best known as the alma mater of the fictional character Ali G, who calls it "Da Matthew Arnold Skool" [1].
There is also a Matthew Arnold School in Cumnor in the county of Oxfordshire.