Phineas (also "Phinehas") Mendel Heilprin (November 1801 in Lublin, Poland – 30 January 1863 in Washington, D.C., United States) was a Jewish scholar.
He early settled in Piotrków and subsequently in Tomaszów, where he became a manufacturer and merchant, but, in consequence of oppression by the Russian government, he removed in 1842 to Hungary.
He was a close student of the Talmud, and also of the Greek and later German philosophers, acquiring a high reputation among Jewish scholars as a religious traditionalist with openness to ideals of the Haskalah.
His works, written in Hebrew, include several controversial writings, dealing with the reform movement among the Jews.
[1] His son Michael was actively involved in the revolutions of 1848 in Hungary and also emigrated to the United States.