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Van Asch Deaf Education Centre was located in Truro Street, Sumner, Christchurch, New Zealand. It was a special school for deaf children, accepting both day and residential pupils, as well being as a resource centre providing services and support for parents, mainstream students and their teachers in the South Island and the Lower North Island (south of Taupō).
The school was founded in 1880. Formerly called the Sumner Deaf and Dumb Institution, Sumner Institution for Deaf-Mutes and Sumner School for the Deaf, the school was renamed in its centenary year as van Asch College in honour of its first Principal, Gerrit van Asch.
In 2019, the New Zealand government decided to merge the school with Kelston Deaf Education Centre in Auckland to form one national school. This national school was named Ko Taku Reo.