The body of Nick Drewett, 31, was found at his home in Reigate, Surrey.
Mr Drewett, games master at St Mary's Preparatory and Choir School in Reigate, had been due to appear at the town's magistrates' court on six charges of indecent assault.
The teacher was suspended from the 235-pupil school in March this year. He was arrested following a four-week investigation into allegations of child abuse at the pounds 4,500-a-year school. He was charged with indecent assaults against boys at a school between July and October last year.Reuse content