Oeiras International School
International School in Lisbon
460
50 (American/British)
16 avg / 16 max
Available
About 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.
| Item | Amount |
|---|---|
| Annual tuition (USD) | $13,547 – $21,713 |
| Annual tuition (EUR) | 13547-21713 |
| Fee year | 2025-2026 |
| True annual cost (with hidden fees)how we calculate | $19,280(+9%) |
| First-year total (with registration + deposit) | $20,780 |
| Cost position in Lisbon | 84th percentile(premium tier) |
IB
IB Diploma
98% pass rate
Chinese, French, Portuguese, Spanish, German
Varies depending on individual needs.
Yes
English as an Additional Language
8:15 – 15:45
Yes
Yes
Is Oeiras International School right for your family?
A School Fit Brief scores this school against your children's ages, learning needs, and budget — with hidden fee analysis, admissions timing, and a ranked shortlist of alternatives in Lisbon.
Get School Fit Brief — $49One-time purchase · PDF + workspace · Source-backed analysis
At a Glance
Fee Position in Lisbon
Mid-rangeSchool Profile
Class Size
Student Diversity
Very diverse
Common: American/British
Estimated Real Cost
Tuition + registration, transport, uniform, exams
Nearby Schools (within 5km)
Disclaimer: School profiles are source-backed decision aids, not endorsements or official rankings. Tuition figures are approximate and may not include registration fees, uniforms, transport, or exam costs. Always verify directly with the school before applying. WhereNext is not affiliated with any school listed. This is not admissions consulting, legal advice, or official school placement guidance.