Nietków [ˈɲɛtkuf] is a village in the administrative district of Gmina Czerwieńsk, within Zielona Góra County, Lubusz Voivodeship, in western Poland.

While part of Medieval Poland, in the early 14th-century Liber fundationis episcopatus Vratislaviensis the village appeared under the Latinized name Necka.

In the following centuries it was known as Nietków Polski and under the Germanized name of Polnisch Nettkow.

Between 1871 and 1945 it was part of Germany, and during the Nazi campaign of removing place names of Polish origin, it was renamed Schlesisch Nettkow.

Nietków has a historic church of the Ascension of Jesus and a park dating back to the 18th century.