Bryanston School is a public school located next to the village of Bryanston, and near the town of Blandford Forum, in Dorset in South West England. It was founded in 1928. It occupies a palatial country house designed and built in 1889–94 by Richard Norman Shaw for Viscount Portman, the owner of large tracts in the West End of London, in the early version of neo-Georgian style that Sir Edwin Lutyens called "Wrenaissance", to replace an earlier house, and is set in 400 acres (1.6 km2).

In England and Wales, a public school is a type of fee-charging private school originally for older boys. They are "public" in the sense of being open to pupils irrespective of locality, denomination or paternal trade or profession; nor are they run for the profit of a private owner.