Isaac Jacob Weissberg (Yiddish: יצחק יעקב ווייסבערג; 1841 – July 1904)[note 1] was a Russian Hebrew writer and educator.
He contributed articles to various Hebrew periodicals, including Ha-Melitz, Ha-Maggid, Ha-Tzfira, Ha-Shaḥar, Ha-Boker Or, Otzar ha-Sifrut, Aḥiasaf, Ha-Shiloaḥ, Ha-Goren, Ha-Pisgah, and Ha-Tikvah.
He received his preliminary training in various ḥadarim, and then attended the yeshiva of Slonim, where he came to be regarded as one of the best Talmudic students.
[3] His more important works include Ga'on ve-shibro, a scholarly criticism of medieval and modern literature; She'elat ha-nashim 'al pi ha-Talmud (also published in Yiddish), a work treating of the status of women according to the Talmud, as well as of the prevailing opinion regarding the authority of the Talmud; Peshuto shel Mikra 'al pi da'at (St. Petersburg, 1898), Talmudic explanations of Biblical passages; and Mishle kadmonim (Nezhin, 1901), a collection of ancient proverbs.
He regarded negatively the desire of younger literati to broaden the language by the formation of new words and terms, and the influence of European literary movements in Hebrew literature.