The term Ultra-Royalists or simply Ultra's refers to a reactionary faction which sat in the French parliament from 1815 to 1830.

It held a majority in the Chamber of Deputies in 1815-1816 (la Chambre introuvable) and from 1824 to 1827.

Their primary target was the restoration of the Ancien Régime in France and was thus strongly supported by King Charles X, while Louis XVIII was probably more fond to the moderate constitutionalist royalists.

After the July Revolution the ultras softened their views and made the Bourbon restoration on the throne their new primary target. From 1830 on they have been called Legitimists.