| Ina Marie von Bassewitz | |
|---|---|
| Princess Oskar of Prussia Countess of Ruppin | |
 by Sandau, Berlin, 1915 | |
| Born | 27 January 1888 Bristow, Grand Duchy of Mecklenburg-Schwerin, Empire of Germany |
| Died | 17 September 1973 (aged 85) Munich, Bavaria |
| Burial | 19 September 1973 |
| Spouse | Prince Oskar of Prussia (m. 1914–58; his death) |
| Issue | Prince Oskar Prince Burchard Princess Herzeleide Prince Wilhelm-Karl |
| House | Bassewitz |
| Father | Count Karl von Bassewitz-Levetzow |
| Mother | Countess Margarethe von der Schulenburg |
Princess Oskar of Prussia, Countess of Ruppin (born Countess Ina-Marie Helene Adele Elise von Bassewitz, 27 January 1888 – 17 September 1973) was a German aristocrat and the wife of Prince Oskar of Prussia.