| Prince Adalbert | |
| Spouse: | Countess Auguste von Seefried auf Buttenheim |
| House: | Wittelsbach |
| Issue: | Prince Konstantin Prince Alexander |
| Father: | Prince Ludwig Ferdinand of Bavaria |
| Mother: | Infanta María de la Paz of Spain |
| Birth Date: | 3 June 1886 |
| Birth Place: | Munich, Bavaria |
| Death Place: | Munich, Bavaria |
| Burial Place: | Andechs Abbey cemetery, Andechs, Bavaria |
Prince Adalbert of Bavaria (German: Adalbert Alfons Maria Ascension Antonius Hubertus Joseph omnes sancti Prinz von Bayern) (3 June 1886 – 29 December 1970) was a member of the Bavarian Royal House of Wittelsbach, historian, author and a German Ambassador to Spain.
Adalbert was born at the Nymphenburg Palace in Munich, Bavaria. He was the second son of Prince Ludwig Ferdinand of Bavaria and his wife Infanta María de la Paz of Spain.
As most of his peers, following the Abitur, Adalbert joined the Bavarian Army and remained an officer throughout the First World War. He served with the artillery as a battery commander and later as a General Staff Corps and a cavalry officer on both the Western and the Eastern Fronts.
After Germany's defeat in 1918, Prince Adalbert left the military and began study history at the Ludwig Maximilian University in Munich; later publishing several works on Bavarian and royal history. With the outbreak of World War II, Adalbert was recalled back to the military and served as a staff officer under close family friend Wilhelm Ritter von Leeb. With the Army Group C, he took part in the German invasion of France, but his return to the German Army was short-lived. In early 1941, Prince Adalbert was relieved from all combat duties as a result of the so-called Prinzenerlass. By this decree, Hitler ordered that all members of the former German reigning royal houses were forbidden from joining or participating in any military operations in the Wehrmacht. Later, in May 1941, Prince Adalbert was cashiered from the military and withdrew to the family castle Hohenschwangau in southern Bavaria, where he lived for the rest of the war.
After the war he worked shortly for the Bavarian Red Cross office and in 1952 was appointed by Konrad Adenauer as the Ambassador of the Federal Republic of Germany to Spain. He remained in this post until 1956.
On 12 June 1919 Prince Adalbert married Countess Augusta von Seefried auf Buttenheim (1899-1978), the daughter of Count Otto von Seefried auf Buttenheim and Princess Elisabeth Marie of Bavaria. The wedding took place in Salzburg, Austria. The couple had two sons:
Prince Adalbert of Bavaria died on 29 December 1970 at Munich and is buried at the Andechs Abbey cemetery in Bavaria.