Friedrich Wilhelm Ernst Paulus (23 September 1890 – 1 February 1957) was a German Generalfeldmarschall (Field Marshal) during World War II who is best known for his surrender of the German 6th Army during the Battle of Stalingrad (July 1942 to February 1943). The battle ended in disaster for the Wehrmacht when Soviet forces encircled the Germans within the city, leading to the ultimate death or capture of most of the 265,000-strong 6th Army, their Axis allies, and collaborators.

Paulus fought in World War I and saw action in France and the Balkans. He was considered a promising officer; by the time World War II broke out, he had been promoted to major general. Paulus took part in the invasions of Poland and the Low Countries, after which he was named deputy chief of the German Army General Staff. In that capacity, Paulus helped plan the invasion of the Soviet Union.

In 1942, Paulus was given command of the 6th Army. He led the drive to Stalingrad but was cut off and surrounded in the subsequent Soviet counter-offensive. Adolf Hitler prohibited attempts to break out or capitulate, and the German defense was gradually worn down. Paulus surrendered in Stalingrad on 31 January 1943, the day after he was informed of his promotion to field marshal by Hitler. Hitler expected Paulus to take his own life, repeating to his staff that there was no precedent of a German field marshal being captured alive.

While in Soviet captivity during the war, Paulus became a vocal critic of the Nazi regime and joined the Soviet-sponsored National Committee for a Free Germany. In 1953, Paulus moved to East Germany, where he worked in military history research. He lived out the rest of his life in Dresden.

Paulus was born in Guxhagen and grew up in Kassel, Hesse-Nassau, the son of a treasurer. He tried, unsuccessfully, to secure a cadetship in the Imperial German Navy and briefly studied law at Marburg University.^{[citation needed]}

Many English-language sources and publications from the 1940s to the present day give Paulus's family name the prefix "von". For example: Mark Arnold-Forster's The World At War, companion volume to the documentary of the same name, Stein and Day, 1973, pp. 139–142; other examples are Allen and Muratoff's The Russian Campaigns of 1941–1943, published in 1944 and Peter Margaritis (2019). This is incorrect, as Paulus's family was never part of the nobility and Antony Beevor refers to his "comparatively humble birth" .

After leaving university without a degree, Paulus joined the 111th Infantry Regiment as an officer cadet in February 1910. On 4 July 1912, he married the Romanian aristocrat Constance Elena Rosetti-Solescu, a descendant of the Rosetti family and sister of a colleague who served in the same regiment. They had a daughter, Olga (1914–2003), who married Achim von Kutzschenbach (1904–1944), a member of the German nobility. In addition, they had twin sons Friedrich and Ernst Alexander (born 1918).

When World War I began, Paulus's regiment was part of the thrust into France, and he saw action in the Vosges and around Arras in the autumn of 1914. After a leave of absence due to illness, he joined the Alpenkorps as a staff officer, serving in France, Romania and Serbia. By the end of the war, he was a captain.