Fabien Pelous will lead France in their RBS 6 Nations clash with Ireland on March 8 following Fabien Galthie's withdrawal because of a shoulder injury.
Pelous, the 29-year-old back row forward who captained Les Bleus 15 times between 1997 and 2002, was named skipper in the 22-man France squad announced by coach Bernard Laporte.
Scrum-half Galthie was injured in France's 38-3 win over Scotland at the Stade de France on Sunday, and his replacement in the number nine shirt is expected to be Dimitri Yachvili, with the uncapped Mathieu Barrau on the bench.
The starting line-up for the Ireland game at Lansdowne Road will be announced next Tuesday at Marcoussis.
England Under-18 head coach John Fletcher insists his young side will be better for the experience after beating Italy in the bronze final to round out their 2015 Rugby Europe U18 Championship campaign in style.