Storm of Steel (in German: In Stahlgewittern) is the memoir of German officer Ernst Jünger's experiences on the Western Front during the First World War. It was originally printed privately in 1920, making it one of the first personal accounts to be published. The book is a graphic account of trench warfare. It was largely devoid of editorialization when first published, but would be strongly revised several times.

Storm of Steel begins with Jünger as a private entering the line with the 73rd Hanoverian Regiment in Champagne. His first taste of combat came at Les Éparges in April 1915 where he was first wounded.
After recuperating, he took an officer's course and achieved the rank of Ensign. He rejoined his regiment on the Arras sector. In 1916, with the Battle of the Somme underway, Jünger's regiment moved to Combles in August for the defence of the village of Guillemont. Here Jünger was fortunate to be wounded again, shortly before the final British assault which captured the village — his platoon was annihilated. In 1917 Jünger saw action during the Battle of Arras in April, the Third Battle of Ypres in July and October, and the German counter-attack during the Battle of Cambrai in November. Jünger led a company of assault troops during the final German Spring Offensive, 21 March 1918 when he was wounded again. On 23 August he suffered his most severe wound when he was shot through the chest.
In total, Jünger was wounded 14 times during the war, including five bullet wounds. He was awarded the Iron Cross 1st Class and was the youngest ever recipient of the Pour le Mérite.