François-Joseph d'Offenstein (27 July 1760 – 27 September 1837), Baron of the Ist Empire, was a French general and military commander during the Revolutionary and Napoleonic Wars.

[citation needed] Offenstein became a major in the National Guard in 1790 and a lieutenant colonel of the 1st Battalion of Volunteers of Bas-Rhin in 1971.

He was later relieved of his command by Nicolas Hentz and Jean-Marie Claude Alexandre Goujon after he allegedly misread a map and led troops to what he thought was a road but was actually a river.

In 1804, Offstein received a Legion of Honor from Napoleon I of France during its first award ceremony at the Invalides of Paris for fighting in the French Revolutionary Wars and during the Consulate.

[citation needed] He served in Napoleon's military attaché at the beginning of the Bourbon Restoration but decided to retire temporarily ten months later.

He returned to the army in 1815 for the Hundred Days and became commander of two lancer regiments from the National Guards of Haut-Rhin and Bas-Rhin.