The Sydney Japanese International School, formerly known in English as the Sydney Japanese School, and in Japanese as シドニー日本人学校 Shidonī Nihonjin Gakkō, is an independent co-educational Nihonjin gakkō primary and secondary day school, located in Terrey Hills within the Northern Beaches Council area of Sydney, Australia.

Nihonjin gakkō , also called Japanese school, is a full-day school outside Japan intended primarily for Japanese citizens living abroad. It is an expatriate school designed for children whose parents are working on diplomatic, business, or education missions overseas and have plans to repatriate to Japan.