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Best 6 IB International Schools in Portugal

IB International Education in Portugal

⇩ Scroll directly to the list of top 6 best IB schools in Portugal ⇩

Below, we have compiled the top 6 IB international schools in Portugal according to our users. However, there are another 76 schools to choose from in the country. You can find the best international school for your child by personalising your results. Just fill in your search criteria, and we will calculate a personal score for every international school in the city of your choosing based on your requirements.

Recommended Schools

International Sharing School - Lisbon

International Sharing School is a vibrant international IB Continuum World School in Lisbon, welcoming students from 12 months to 18 years old, offering a global education rooted in international mindedness, multilingual learning and a strong sense of community.
City
Lisbon
Curriculum
IB
Language of instruction
English
Ages
1 to 18
Yearly fees - 2026/2027
from: €11,790
to: €26,760
Reviews
(26 reviews)

Nobel Algarve British International School - Almancil

Nobel Algarve British International School, Almancil, is a fast-growing international school for students aged 3–18, set in the Algarve’s Golden Triangle. Following the National Curriculum for England, it offers IGCSEs, the IB Diploma Programme and BTEC pathways
City
Algarve
Curriculum
British, IB
Language of instruction
English
Ages
3 to 18
Yearly fees - 2026/2027
from: €7,920
to: €18,570
Reviews
(1 review)

United Lisbon International School

United Lisbon International School is a modern and innovative school providing education for children to prepare them for the future. Technology, Global Citizenship, Entrepreneurism, Sports and the Arts are all pillars for our education.
City
Lisbon
Curriculum
IB, International
Language of instruction
English
Ages
3 to 18
Yearly fees - 2025/2026
from: €11,800
to: €24,000
Reviews
(11 reviews)

Best 6 IB International Schools in Portugal

Out of a total of 12 IB International Schools in Portugal (and 82 total International Schools in Portugal)

Based on the aggregated preferences of our users in the last 30 days.

St. Dominic's International School

St Dominic’s International School is a welcoming, diverse IB continuum school (ages 3 to 18) where students feel safe, valued, and supported. With over 50 nationalities and a strong sense of belonging, SDIS fosters global mindedness, collaboration, and lifelong learning. Small class sizes, personalised attention, and an experienced faculty ensure an inclusive and academically rigorous environment
City
Lisbon
Curriculum
IB
Language of instruction
English
Ages
3 to 18
Yearly fees - 2026/2027
from: €11,778
to: €23,166
Reviews
(1 review)

United Lisbon International School

United Lisbon International School is a modern and innovative school providing education for children to prepare them for the future. Technology, Global Citizenship, Entrepreneurism, Sports and the Arts are all pillars for our education.
City
Lisbon
Curriculum
IB, International
Language of instruction
English
Ages
3 to 18
Yearly fees - 2025/2026
from: €11,800
to: €24,000
Reviews
(11 reviews)

Oeiras International School

Oeiras International School is committed to promoting a respectful community of independent and passionate lifelong learners who are aware of their roles and responsibilities in an ever-changing world. To this end, OIS offers a variety of learning experiences within a supportive and challenging environment of rigorous academic programmes.
City
Lisbon
Curriculum
IB
Language of instruction
English
Ages
5 to 18
Yearly fees - 2025/2026
from: €13,547
to: €21,713
Reviews
(3 reviews)

Nobel Algarve British International School - Almancil

Nobel Algarve British International School, Almancil, is a fast-growing international school for students aged 3–18, set in the Algarve’s Golden Triangle. Following the National Curriculum for England, it offers IGCSEs, the IB Diploma Programme and BTEC pathways
City
Algarve
Curriculum
British, IB
Language of instruction
English
Ages
3 to 18
Yearly fees - 2026/2027
from: €7,920
to: €18,570
Reviews
(1 review)

Oporto British School

Oporto British School, located in Foz do Douro, Porto, Portugal, is the oldest British school in Continental Europe, established in 1894. It is a private, day school for both boys and girls, aged 3 to 18. It follows a British curriculum until the completion of the IGCSE and Senior pupils study the IB Diploma Programme.
The high quality education received by the pupils as evidenced by outstanding IB results, have led to the school achieving full dual accredited status by the Council of British International Schools (COBIS) and the Council of International Schools (CIS).
City
Porto
Curriculum
IB, British
Language of instruction
English
Ages
3 to 18
Yearly fees - 2025/2026
from: €9,690
to: €17,280
Reviews
(2 reviews)

International Sharing School - Lisbon

International Sharing School is a vibrant international IB Continuum World School in Lisbon, welcoming students from 12 months to 18 years old, offering a global education rooted in international mindedness, multilingual learning and a strong sense of community.
City
Lisbon
Curriculum
IB
Language of instruction
English
Ages
1 to 18
Yearly fees - 2026/2027
from: €11,790
to: €26,760
Reviews
(26 reviews)
6 other IB schools in Portugal ⇨

Find the Best IB International School in Portugal for your family!

Other lists of best international schools in Portugal

20 Best International Schools in Portugal (June 2026 Rankings) 20 Best British International Schools in Portugal (June 2026 Rankings)

Summary

What are the best IB international schools in Portugal?

  1. St. Dominic's International School
  2. United Lisbon International School
  3. Oeiras International School
  4. Nobel Algarve British International School - Almancil
  5. Oporto British School
  6. International Sharing School - Lisbon

Find your International School

How Many International Schools are there in Portugal?

There are 82 international schools in Portugal. See them all

What are the most popular curriculums in Portugal?
Curriculum International schools
British 55  
Portuguese 32  
American 18  
Hybrid 13  
IB 12  
Other 28  

Additionally, there are 3 boarding schools in Portugal.

What are the most popular languages of instruction?
Language International schools
English 75  
Portuguese 31  
French 4  
German 3  
Swedish 1  
Other 1  

Among these, there are 22 bilingual schools in Portugal.

How Much do International Schools cost in Portugal?

The average price of international schools in Portugal is €11,348. (*)

Price for 12 y.o.
Min. price €5,170
Avg. price €11,348
Max. price €20,730
Price for 12 y.o. Number of international schools
€5,000 to €8,999 28  
€9,000 to €12,999 15  
€13,000 to €16,999 11  
€17,000 to €20,999 13  

(*) The price for one year of fees for a 12 year old (or the closest age to 12 available in the school), excluding one-time fees at enrolment.

How Big are Class Sizes in Portugal?

The average class size of international schools in Portugal is 16.9 students.

Class Size Number of international schools
1 to 5 1  
6 to 10 5  
11 to 15 12  
16 to 20 20  
21 to 25 12  

How big are the schools in Portugal (in number of students)?

The average size, in number of students, of international schools in Portugal is 450 students.

Number of students Number of international schools
1 to 250 36  
251 to 500 10  
501 to 750 7  
751 to 1,000 4  
1,001 to 1,250 3  
1,251 to 1,500 3  
1,501 to 1,750 1  
1,751 to 2,000 2  
2,001 to 2,250 0  
2,251 to 2,500 0  
2,501 to 2,750 1  

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International Schools Database

The International School Database is the best way to find, research, and compare international schools in cities across the world.

Each school's listing includes full contact details, school policies, nationality information, extra-curricular activities, and much more. Everything you need to know is all under one roof, so you can make an informed decision on the best school for your children.

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