Isaac ben Jacob Benjacob (January 10, 1801, Ramygala – July 2, 1863, Vilnius) was a Jewish, Russian-born Maskil, best known as a bibliographer, author, and publisher.
His 17-volume Hebrew Bible included Rashi, Mendelssohn as well as his own Mikraei Kodesh which "emended" the biblical text and helped spread the Haskalah movement.