Ostaszewo Wluski was formerly part of the German Empire. In the German Empire, the place was called Ostaszewo Wluski.
The place is now called Ostaszewo-Wluski and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ostaszewo Wluski | Russian Empire | Pultusk | 1914 |
| Ostaszewo-Wluski | Poland | Pultusk | 1919 |
| Ostaszewo Wluski | German Empire | Ostenburg | 1939 |
| Ostaszewo-Wluski | Poland | Pultusk | 1945 |
| Ostaszewo-Wluski | Poland | Ciechanów | 1992 |