Bereton Montessori Early Years, Primary and Secondary School is a private, mixed-sex education school in Rivers State, Nigeria. The school has campuses in Old GRA and Stadium Road in Port Harcourt. As its name suggests, the school consists of a nursery, primary and secondary school approved by the Rivers State government.
Bereton Montessori was founded by Dale's daughter, Victoria Diete Spiff. The school opened on 10 September 1978 as a nursery school. At its inception, the school had about 120 pupils in eight classrooms. It was upgraded with a primary school in January 1983.
Bereton Montessori is affiliated with Charles Dale Memorial International School.