List of trolleybus systems in Germany
This is a list of trolleybus systems in Germany by federal states (Bundesländer). It includes all trolleybus systems, past and present. A city name in bold indicates a presently existing system.
Berlin and Brandenburg
| Name of System | Location | Date | Date | Notes |
| Berlin | ||||
| Electromote | ♦ Halensee, Charlottenburg – Spandau Bock | 29 April 1882 | 13 June 1882 | Electromote, world's first trolleybus operation. |
| Gleislose Bahn Niederschöneweide–Johannisthal | ♦ Schöneweide – Johannisthal | 5 December 1904 | 4 January 1905 | See also Gleislose Bahn Niederschöneweide–Johannisthal. |
| Oberleitungsbus Steglitz | ♦ Steglitz | 20 April 1912 | 31 July 1914 | See also Oberleitungsbus Steglitz |
| ♦ Spandau, West Berlin | 24 December 1933 | 17 December 1952 | ||
| ♦ Steglitz, West Berlin | 2 May 1935 | 22 March 1965 | ||
| ♦ Mitte – Lichtenberg, East Berlin | 1 August 1951 | 1 February 1973 | ||
| Gleislose Bahn Eberswalde | Eberswalde | 22 March 1901 | June 1901 | See also Trolleybuses in Eberswalde, see also Gleislose Bahn Eberswalde for the old system |
| Gleislose Bahn Eberswalde | Eberswalde | 3 November 1940 | See also Trolleybuses in Eberswalde, see also Gleislose Bahn Eberswalde for the old system | |
| Potsdam | 1 October 1949 | 2 February 1995 |
Lower Saxony
North Rhine-Westphalia
| Name of System | Location | Date | Date | Notes |
| Aachen | 2 January 1944 | 13 September 1944 | ||
| Aachen | 1 August 1948 | 3 February 1974 | ||
| Bielefeld | 27 May 1944 | 8 November 1968 | ||
| Bochum | 18 June 1949 | 18 October 1959 | ||
| Bonn | 17 February 1951 | 30 June 1971 | ||
| Dortmund | 29 May 1942 | 17 June 1967 | ||
| Duisburg | 18 December 1954 | 28 May 1967 | ||
| Essen | 8 May 1949 | 23 November 1959 | ||
| Essen | 28 May 1983 | 24 September 1995 | Dual-mode guided bus operation. | |
| Gummersbach | 25 November 1948 | 30 September 1962 | ||
| Köln /Cologne | 6 November 1950 | 16 March 1959 | ||
| Krefeld | 3 December 1949 | 29 May 1964 | ||
| Langenfeld – Monheim | 31 May 1904 | 5 November 1908 | ||
| Veischedetalbahn | Grevenbrück | 6 February 1903 | 6 June 1916 | See also Veischedetalbahn |
| Mettmann | 26 August 1930 | 31 December 1954 | ||
| Minden | 19 December 1953 | 20 July 1965 | ||
| Moers | 27 October 1950 | 19 September 1968 | ||
| Gleislose Bahn Monheim–Langenfeld | Monheim am Rhein | 31 May 1904 | 5 November 1908 | See also Gleislose Bahn Monheim–Langenfeld |
| Münster | 1 October 1949 | 26 May 1968 | ||
| Neuss | 28 August 1948 | 31 December 1959 | ||
| Neuwied | 1 October 1949 | 28 February 1963 | ||
| Rheydt | 18 May 1952 | 16 June 1973 | Rheydt was merged into Mönchengladbach from 1975. | |
| Siegen | 16 October 1941 | 5 January 1969 | ||
| Solingen | 19 June 1952 | See also Trolleybuses in Solingen. | ||
| Wuppertal | 1 October 1949 | 27 May 1972 | One trolleybus line from Solingen terminates in Wuppertal-Vohwinkel |
Saxony-Anhalt
Thuringia
Towns in historic East Prussia, West Prussia, Lower Silesia and Brandenburg that are no longer part of Germany:- Allenstein: see Olsztyn, Poland
- Breslau: see Wrocław, Poland
- Danzig: see Gdańsk, Poland
- Insterburg: see Chernyakhovsk, Russia
- Landsberg an der Warthe: see Gorzów (Wielkopolski), Poland
- Liegnitz: see Legnica, Poland
- Waldenburg: see Walbrzych, Poland