Jean Paul Pierre Casimir-Perier was a French politician who served as President of France for six months in 1894-1895.

Casimir-Pierre Périer was a prominent French banker, mine owner, political leader and statesman. In business, through his bank in Paris and ownership of the Anzin Coal Co. in the Department of Nord, he contributed significantly to the economic development of France in the early stages of industrialization. In politics, he was a leading liberal member of the Chamber of Deputies throughout the Bourbon Restoration and president of the chamber at the outset of the July Revolution of 1830. He led the liberal-conservative Resistance Party in support of the constitutional monarchy of Louis-Philippe I. He became president of the Council of Ministers and Minister of Interior in the spring of 1831. Although his ministry was brief, his strong government succeeded in restoring order at home and keeping peace abroad. He fell victim to the cholera epidemic in France in 1832.