4. The British International School (BIS) Lagos
Established in 2001, is a top-tier co-educational school located in Victoria Island. It offers the British National Curriculum to students aged 11–18, with options for both day and boarding. Known for its world-class facilities and diverse student body, BIS emphasizes both academic excellence and extracurricular development. Although BIS does not publicly disclose its fees, available sources reveal that fees range from ₦6 million to ₦8 million, including tuition, boarding, and other expenses, making it one of the most expensive schools in Nigeria.

British International School, Lagos