"This month marks the end of the disengagement process of French forces in the Sahel," Niger army lieutenant Salim Ibrahim said at a ceremony in Niamey marking the end of France's military presence.
The French exit from Niger leaves hundreds of US military personnel, and a number of Italian and German troops, remaining in the country.
France said it would pull out its roughly 1,500 soldiers and pilots from Niger after the former French colony's new ruling generals demanded they depart following the coup on July 26.