Ciessau was formerly part of the German Empire. In the German Empire, the place was called Zissau (Gotenhafen-Zissau).
The place is now called Cisowa (Gdynia-Cisowa) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ciessau | German Empire | Neustadt i. Westpr. | before the Versailles Treaty |
| Cisowa | Poland | Wejherowo | after the Versailles Treaty |
| Zissau (Gotenhafen-Zissau) | German Empire | Gotenhafen/Gdingen (St.Kr.) | 1939 |
| Cisowa (Gdynia-Cisowa) | Poland | Gdynia m. | 1945 |
| Cisowa (Gdynia-Cisowa) | Poland | Gdańsk | 1992 |