Pedro Max Fernando Frontin (8 February 1867 – 7 April 1939) was an Admiral from the Brazilian Navy.

During his career, he commanded the ships Brazilian battleship São Paulo, Rio Grande do Sul, Brazilian cruiser Bahia, CT Piauí and Laurindo Pitta.

Admiral Frontin was also the Chief Commander of the Brazilian Naval Division during 1918 in World War I, on the side of the Triple Entente.

The Brazilian fleet under his charge operated from the North African Coast to the Mediterranean Sea.

Distinction Golden Medal for his services during World War I, Cross of the Leopold II of Belgium; Italy's Golden medal; First Class of Japanese Empire.