A separate tram system operated from 1907 to 1965, when it was replaced by bus service.

Trams in Olsztyn (then Allenstein, East Prussia, German Empire) first ran in December 1907.

[2][3] The network was entirely single track, 1,000 mm (3 ft 3+3⁄8 in) metre gauge, and powered by 600 V DC overhead lines.

It consisted of two routes: route 1 connecting Olsztyn Główny railway station with Plac Roosevelta [pl] (then Hauptbahnhof–Remontemarkt) through Old Town and Wysoka Brama [pl] (then Hohes Tor) and route 2 connecting 1 Maja with Jakubowo [pl] (along Wojska Polskiego near the Forest Stadium, then Guttstädter Straße–Jakobsberg, Waldstadion).

[3] The system was closed down because it required major investment that the city could not afford and bus transport was a more economical solution.

[11][12] Several projects are planned for Olsztyn's tram network: The standard gauge network connects the main railway station with the south of the city, with branches to the edge of Old Town and the University.

The network is mostly double-tracked, with the branch to Uniwersytet-Prawocheńskiego and a short stretch near the Wysoka Brama being single tracks.

[19][20] All vehicles are fully accessible, are air-conditioned, and are equipped with ticket vending machines and free WiFi.