Zielonka [ʑɛˈlɔnka] is a village in the administrative district of Gmina Murowana Goślina, within Poznań County, Greater Poland Voivodeship, in west-central Poland.

It is situated in the middle of the Puszcza Zielonka forest and landscape park.

It has a small lake, from which the Trojanka stream flows northward towards Głęboczek.

The University of Life Sciences in Poznań has a research centre in the village.

There is also an Arboretum covering 83 ha and featuring about 800 kinds of trees and shrubs.