| Honorific-Prefix: | Rabbi |
| Lazar Grünhut | |
| Birth Date: | May 10, 1850 |
| Birth Place: | Gerenda, Hungary |
| Death Date: | February 2, 1913 |
| Death Place: | Petah Tikva, Ottoman Palestine |
| Nationality: | Hungarian |
| Occupation: | Rabbi, Writer |
| Known For: | Research and publications in the field of Midrash |
| Rabbi | |
| Post: | Rabbi of Temesvár |
| Alma Mater: | University of Bern |
| Works: | Kritische Untersuchung des Midrasch Kohelet Rabbah, Midrash Shir ha-Shirim, Sefer ha-Liḳḳuṭim, Ezra und Nehemia, Kritisch Erläutert, Saadia Gaon und Sein Commentar zum Buche Daniel, Yalkut ha-Machiri zu den Sprüchen Salomos, Die Reisebeschreibungen des R. Benjamin von Tudela |
Grünhut Lazar (May 10, 1850 – February 2, 1913, Hebrew: אלעזר הלוי גרינהוט) was a Hungarian rabbi and writer. He is especially renowned for his research & publications in the field of Midrash.
Lazar was born at Gerenda, Hungary on May 10, 1850. Receiving his diploma as rabbi while a mere youth, he went to Berlin, where he attended the lectures of Dr. Israel Hildesheimer at the rabbinical seminary, as well as those at the university. He graduated (Ph.D.) from the University of Bern. For eleven years he officiated as rabbi at Temesvár, Hungary.
In 1892, he moved to Jerusalem on invitation to be director of the Jewish orphanage at Jerusalem. There he was active in teaching and in Zionist political activism. He was active in the Mizrachi movement and was their representative in the Zionist Congress.
He died in Petah Tikva on February 2, 1913.