Secondary Schools in Phaya Thai District
Schools providing secondary education.
3 secondary schools
RBIS International School — Secondary Campus
Sam Sen Nai SubdistrictRBIS secondary and Sixth Form enquiries in Sam Sen Nai, with British-curriculum pathways, IGCSE and post-16 options, admissions contacts and 2026–27 fees.
RBIS International School Bangkok
Sam Sen Nai SubdistrictBritish-curriculum school in Phaya Thai, with early-years and primary learning, progression to secondary and Sixth Form, and central admissions on Soi Rajavithi 2.
Samsen Wittayalai School
Phaya Thai SubdistrictGovernment secondary school in Phaya Thai for Mathayom 1–6, with regular Thai-curriculum study, English Program and published academic-enrichment pathways.
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