Friedrich Adam Julius von Bernhardi (22 November 1849 – 11 July 1930) was a Prussian general and military historian.

A militarist, he is perhaps best known for his bellicose book Deutschland und der Nächste Krieg (Germany and the Next War), printed in 1911.

Describing war as a "divine business", he proposed that Germany should pursue an aggressive stance and ignore treaties.

He was appointed general in command of the VII Army Corps at Münster in Westphalia in 1907, but retired two years later and busied himself as a military writer.

Widespread attention was excited by the memoirs of his father, the diplomat and historian Theodor von Bernhardi, which he published, and still more by his book Germany and the Next War.