Kolniszki [kɔlˈniʂki] is a village in the administrative district of Gmina Gołdap, within Gołdap County, Warmian-Masurian Voivodeship, in northern Poland, close to the border with the Kaliningrad Oblast of Russia. It lies approximately 8 kilometres (5 mi) south-east of Gołdap and 135 km (84 mi) north-east of the regional capital Olsztyn.

• Herbert Ehrenberg (1926–2018), German politician