The 45m tall Nikolai Tower (German: Nikolaiturm, pronounced [nikoˈlaɪ̯tʊɐ̯m]) probably erected before 1250 is part of the historic fortification of Görlitz.

It is located inside the inner part of Görlitz between the old town and the historic nikolai suburb (Nikolaivorstadt).

The outer gate was located on the trench, connected via a drawbridge.

Like other parts of the cities fortification the gateway, the bridge and the trench were removed in 1848.

[3] With no military usages the tower premises were used by a society of local history researchers (Zirkel Görlitzer Heimatforschern e.V.)