Bedford School is a public school (English private boarding and day school) for boys aged 7–18, in the county town of Bedford in England. Founded in 1552, it is the oldest of four independent schools in Bedford run by the Harpur Trust. Bedford School is one of the oldest boys' schools in the United Kingdom, and was the winner of the Independent Boys School of the Year Award at the Independent Schools of the Year Awards in 2021.

Bedford School is composed of the Preparatory School (ages 7 to 13) and the Upper School (ages 13 to 18). There are around 1,100 pupils, of whom approximately one half are boarders. In 2014, James Hodgson succeeded John Moule as headmaster after Moule moved on to Radley College.