The British International School of Stockholm (BISS) a private, coeducational, fee paying, non-profit day school for students aged 3 to 18 in the Greater Stockholm area.

[12]  This makes it one of only two schools in the Stockholm region to offer the combination of IGCSE and IB Diploma to its students.

BISS students compete in the international Mathematics competition for COBIS schools - the Maths All stars - on an annual basis.

A similar threat was received on the same day by the British International School of Stavanger.

[17] In 2019 a team from BISS won the Cambridge Upper Secondary Science Competition for the Europe region.