Roman Józef Abraham (28 February 1891 – 26 August 1976) was a Polish cavalry general, commander of the Wielkopolska Cavalry Brigade during the German and Soviet Invasion of Poland in September 1939, and Battle of Bzura commander of Polish cavalry (combined cavalry unit). During the Second Polish Republic, he was Brigadier-General and, for a short period, from 1930 to 1931, Abraham was also a member of the Polish Parliament. Abraham was born in Lwów, in what was then Austria-Hungary (later in Poland, now Lviv, Ukraine). He was the son of Władysław Abraham, professor of Canon law and rector of the University of Lviv. He studied at the Jesuit School in Chyrów in Bąkowice, graduating in 1910. He then studied at the Faculty of Philosophy and Law at Jan Kazimierz University in Lviv, graduating in 1915. During World War I he served from August 1914 to October 1918 in the Austro-Hungarian army in the 1st Regiment of Uhlans of National Defence, fighting on the French, Romanian, Russian, Serbian and Italian fronts, ending his service as a Lieutenant in the cavalry. At the end of World War I, he joined the Polish Military Cadres in Lwów. From 1 November 1918 in the reformed Polish Army in the rank of lieutenant, he was the commander of the Góra Strudenia sector in Lwów. He created his own unit, later called "Straceńcami". The unit fought successfully in various defences of Lwów, in the defence of Persenkówka, and in Śródmieście. The unit raised the Polish banner at the Lwów City Hall at dawn on 22 November, and on 24 November 1918 he was appointed the rank of Captain. However, his troops were accused of numerous robberies. An account, for instance, cited that the Galician unit he commanded allegedly plundered from peasants living in captured Ukrainian villages, hauling all that could be transported to Lwów. From January to August 1919 he commanded an independent battalion, regiment and Operational Group in the division of Colonel Władysław Sikorski. From August 1919, he was an officer in the operating department and an observer in the 59th Air Force Squadron.