Tak Oi Secondary School (Chinese: 德愛中學), commonly abbreviated as TOSS, is a girls' secondary school situated in Tsz Wan Shan, Wong Tai Sin, Hong Kong.

It was established in 1970 by the Missionary Sisters of the Immaculate Conception (MIC).

[2] The school was founded in 1970 in response to the needs of the Hong Kong society and the request of Catholic bishop Lawrence Bianchi.

At that time, the government was developing the area of Tsz Wan Shan, a district near Wong Tai Sin in East Kowloon.

[1] This Hong Kong school or sixth-form college related article is a stub.