Peter I. Borst (April 24, 1797 – November 14, 1848) was an American farmer and politician who served one term as a U.S. Representative from New York from 1829 to 1831.

Born in Middleburgh, New York, Borst attended the common schools and became a successful farmer on his estate, "The Hook" and was an officer of the Schoharie County Agricultural Society.

Borst served as an officer of New York State Militia and on the staff of Governor William C. Bouck.

[2] Borst died in Middleburg, New York, on November 14, 1848 (age 51 years, 204 days).

[3] This article incorporates public domain material from the Biographical Directory of the United States Congress