Yitzhak Arieli (Hebrew: יצחק אריאלי; born 1896, died 5 April 1974) was a leading Israeli rabbi.

He was one of the founders of Kiryat Shmuel and Neve Sha'anan neighborhoods in central Jerusalem.

[1] Arieli developed a close relationship with Rav Kook following the latter's arrival in Jerusalem in 1921, and became one of his leading students.

Arieli was appointed as posek of Bikur Holim Hospital and served as the mashgiach ruchani of Jerusalem's Mercaz HaRav Yeshiva.

His granddaughter Yael Willner is a judge on the Supreme Court of Israel.