Mossad HaRav Kook is a research foundation and publisher of Rabbinic Literature based in Jerusalem. Most of the books published by Mossad Harav Kook Publishing House are in Hebrew. But they have published some of their most popular titles in English translation.

Mossad Harav Kook, which has published more than 2500 books over the course of close to 90 years of activity, is named after Abraham Isaac Kook, the first Ashkenazi chief rabbi of Israel.

The publishing house was founded in the 1930s and today's directors are fourth generation descendants.