Gabriel Judah Lichtenfeld (Hebrew: גַּבְרִיאֵל יְהוּדָה ליכטענפעלד; 1811, Lublin — 22 March 1887, Warsaw) was a Jewish-Polish maskilic mathematician, poet, and author.
[1] A descendant of Moses Isserles, Lichtenfeld showed early ability as a Talmudic scholar.
He later became familiar with Latin, German, French, and Polish, and made a special study of philosophy and mathematics.
His reputation was enhanced by his series of articles, in the Polish periodical Izraelita, on Jewish mathematicians.
Among other works, Lichtenfeld was the author of Yedi'ot ha-Shi'urim (1865, "Science of Measurement"), Tzofnat Pa'neach (1874), a critical review of Slonimski's Yesode Ḥokmat ha-Shi'ur, Tosefot (1875), a polemic against Slonimski, Kohen Lelo Elohim (1876), a book of mathematical criticisms, and Sippurim be-Shir ve'Shirim Shonim (1877, "Stories in Verse and Selected Poems"), a collection of poems and rimed prose by himself and by his son-in-law I. L. Peretz.