Primary School (6-10 years)

St Peters School
International school for children aged 3 to 16 following a Portuguese/English bilingual curriculum. 
St Dominics International School
International school for children 3-18 with the International Baccalaureate Programmes: Primary (PYP), Middle (MYP) and Diploma. 
Carlucci American International School of Lisbon
International school for children aged 3 to 18 years following the American curriculum and preparing for the International Baccalaureate. 
Colegio Luso-International do Centro
Co-educational school for children ages 3 to 18. British curriculum preparing students for IGCSE and AICE.
St Julians School
International school for students ages 3 to 15, following the English National Curriculum culminating in GCSE examinations or the Portuguese National Curriculum. Students ages 16 to 18 follow the International Baccalaureate Diploma Programme.
IPS - International Preparatory School
International school for children 3 to 11 years of age with teaching based on the English National Curriculum. 
Queen Elizabeth's School
International school for children aged 3 to 11. 
Sintra International Christian Academy
A new K4-12 international Christian school with an American curriculum.  Opening September 2017 to students aged 4-18.  Offering a rigorous traditional curriculum and college prep program while teaching 21st Century skills. Monday...
The Swedish School, Lisbon
Pre-school through grade 6 for Swedish, Finnish, Danish, and Norwegian children. Languages taught include Portuguese and English.