Parkeisenbahn Cottbus, Miniature railway in Cottbus, Germany

The Parkeisenbahn Cottbus is a 600 mm narrow-gauge railway running through the Sandow, Branitzer Siedlung and Branitz districts. Its three stations are Stadion der Freundschaft, next to the Energie Cottbus stadium, Zoo, with access to Tierpark Cottbus, and Park und Schloss Branitz. The line is listed as a monument in Brandenburg and is run by Cottbusverkehr GmbH with children and teenagers among the staff.

The railway opened on 1 June 1954 as the Pioniereisenbahn Cottbus, initially 1.1 km from Freundschaft (now Stadion der Freundschaft) to Tierpark (now Zoo); a second kilometre to Friedenseiche (now Park & Schloss Branitz) followed four years later. The 1995 Bundesgartenschau brought new tracks, bridges and the Sandower Dreieck depot. In spring 2011 the Zoo station tracks, over 40 years old, were renewed at a cost of 42,000 euros. The operator changed from CMT to Cottbusverkehr GmbH on 1 April 2011, and in 2020 the Park & Schloss Branitz station reopened after renovation.

Children and teenagers work as staff on the railway, as they did when it opened in 1954 as a Pioniereisenbahn. They are all members of the Förderverein, founded on 18 June 1991, which organises outings and work assignments and runs the former "Lokomotive" inn at Sandower Dreieck station.

The railway runs from April to October, daily during the Brandenburg summer holidays and on weekdays in the summer months. At Sandower Dreieck station there are connections to Deutsche Bahn and ODEG regional trains and to tram line 2; at Zoo station to bus line 10. The Stadion der Freundschaft, Zoo and Park und Schloss Branitz stations each give direct access to the adjoining parks.

The line's oldest locomotive, No. 99 0001, is a Brigadelok built in 1918 by Linke-Hofmann-Werke in Breslau; more than 2,500 of this 600 mm-gauge type were made for German army field railways in World War I. It pulled the opening train on 1 June 1954 and received a new boiler in March 2016.