| Kowloon Tong School (Secondary Section) | |
| Motto: | Latin: Diligence, Simplicity, Sincerity, Courage |
| Type: | Aided Secondary Schools |
| Principal: | Teresa Hon Pui-yee |
| Enrollment: | 850 |
| Faculty: | 58 |
| Colours: | Blue |
| Website: | http://www.ktsss.edu.hk |
The Kowloon Tong School (Secondary Section) (; KTSSS) is a co-educational secondary school in Hong Kong. Located at 10 Surrey Lane in Kowloon Tong,[1] the school was founded in 1962 as private English language school. It was changed to a co-educational aided secondary school in 1978.
The school is not a "through-train" school that links with the Kowloon Tong School (Primary Section).[2]