Oulun Lyseon Lukio (Oulu Lyseo Upper Secondary School) is a Finnish upper secondary school in the city of Oulu in northern Finland.

In addition to the Finnish national curriculum the school provides the option to study the International Baccalaureate programme in English.

[3][4] In the autumn of 1874, Oulun lyseo started as a private Lyceum and it adopted Finnish as the official academical language.

[5] Since 1992 Oulun Lyseon lukio has been authorized to teach the IB Diploma Programme.

The building representing neoclassical style was designed by architect Carl Ludvig Engel and built in 1831 as a Trivial school, which was the first school in the northern Finland that lead to university studies.