Napoléon Alexandre Louis Joseph Berthier, 2nd Prince of Wagram (11 September 1810, Paris – 10 February 1887, Paris) was a French politician and nobleman.

He was the son of Louis-Alexandre Berthier, 1st Prince of Wagram, and Duchess Maria Elisabeth in Bavaria (and by his mother, grandnephew of King Maximilian I of Bavaria).

She was the daughter of Nicolas Joseph Clary and Malcy Anne Jeanne Rougier.

She was also the niece of Désirée Clary, former fiancée to Napoleon Bonaparte and the wife of Jean-Baptiste Bernadotte - King Charles XIV of Sweden.

The 2nd, the 3rd and the 4th Prince of Wagram are buried at the Château de Grosbois.