The Colégio Luso-Internacional do Porto (abbreviated as CLIP; Portuguese for Luso-International School of Porto), officially known in English as the Oporto International School, is a private international school in Porto, Portugal.

CLIP was founded in 1988 as an initiative of the Luso-International Foundation for Education and Culture.

CLIP is a fully accredited school by the Council of International Schools (CIS), since 2013.

Today CLIP has approximately 1000 students, aged 3 to 18, from more than 40 countries, representing 35% of the student body.

CLIP annually hosts the Oporto Model United Nations (OPOMUN) since 2007.