The Battle of Champaubert was the opening engagement of the Six Days' Campaign. It was fought between a French army led by Emperor Napoleon and a small Russian corps commanded by Lieutenant General Count Zakhar Dmitrievich Olsufiev. After putting up a good fight, the Russian formation was destroyed; the survivors escaped into the woods while Olsufiev became a French prisoner. Champaubert is located in France, 46 kilometres (29 mi) west of Châlons-en-Champagne and 69 kilometres (43 mi) east of Meaux.

The Six Days Campaign was a final series of victories by the forces of Napoleon I of France as the Sixth Coalition closed in on Paris.