Svenska normallyceum i Helsingfors (Norsen) was a Swedish-language school in the Kaartinkaupunki district of Helsinki between 1864 and 1977.

[1] Svenska normallyceum was established on the initiative of Johan Vilhelm Snellman in 1864.

The school was initially called Helsingfors normalskola, but the name was changed in 1874.

As a normal school, Norsen offered prospective teachers auscultation opportunities, which is why it included both classical and realschule education.

Norsen was then temporarily located in a rented facility at Ratakatu 2,[1] while a new school building designed by architect Axel Hampus Dahlström was being built.