| Birth Date: | 20 March 1889 |
| Death Place: | Tutzing, Bavaria, Nazi Germany |
| Burial Date: | 5 May 1945 |
| Burial Place: | Erbach, Hesse, Germany |
| Full Name: | German: Waldemar Wilhelm Ludwig Friedrich Viktor English: Waldemar William Louis Frederick Victor |
| Father: | Prince Henry of Prussia |
| Mother: | Princess Irene of Hesse and by Rhine |
| Daughter: | Princess Marie Amelie of Prussia and Hesse |
| House: | Hohenzollern |
Prince Waldemar William Louis Frederick Victor of Prussia (German: Waldemar Wilhelm Ludwig Friedrich Viktor Heinrich; 20 March 1889 at Kiel – 2 May 1945 at Tutzing, Bavaria) was the eldest son of Prince Henry of Prussia and Princess Irene of Hesse and by Rhine.
Waldemar married Princess Calixta of Lippe-Biesterfeld (14 October 1895 – 15 December 1982) on 14 August 1919 at Hemmelmark.[1]
Waldemar, like his maternal first cousin, Tsarevich Alexei Nikolaevich of Russia; maternal uncle Prince Friedrich of Hesse and by Rhine; and youngest brother Henry, had haemophilia. He died in a clinic in Tutzing, Bavaria because of a lack of blood transfusion facilities. He and his wife fled their home in light of the Russian advance, arriving in Tutzing, where Waldemar was able to receive his last blood transfusion.[2] The U.S. Army overran the area the next day, on 1 May 1945, and diverted all medical resources to treat nearby concentration camp victims, preventing Waldemar's doctor from treating him.[2] Waldemar died the following day, on 2 May.[1]
Prince Waldemar received the following awards:[3]
