Dawidh Ḥanokh Yissḥaq Bar-Ḥayim (Hebrew: דוד חנוך יצחק בה"ר חיים רפאל ז"ל; born Mandel; born 24 February 1960) is an Israeli rabbi who heads Machon Shilo, a Jerusalem-based rabbinical court and institute of Jewish education dedicated to the Torah of Israel.

Bar Hayim lectures in the greater Jerusalem area, and publishes articles in English and Hebrew on various web sites.

[3] Bar-Hayim established the Beth HaWa'adh rabbinical court to focus on actualizing the Torah of Israel and serve as an address for Gentiles, particularly the growing Noahide community.

For this purpose, he has published a prayer book intended to reflect the original composition of early Israel, based upon the Jerusalem Talmud.

[6] In light of the fact that Israel is yet again a sovereign Jewish state, with Jerusalem as its capital, Bar-Hayim has argued for increased utilization of the Jerusalem Talmud, which in his opinion, in regard to Torat Eretz Yisrael and Minhagei Eretz Yisrael, contains more lucid rulings[7] than the Babylonian Talmud, which was given supremacy in "exile-mode" Judaism.