Modi Rosenfeld (Hebrew: מודי רוזנפלד; born Mordechi Rosenfeld), known professionally as Modi (stylized as MODI) is an Israeli-American stand-up comedian and actor. He is known for his Jewish humor and has become a mainstay among Orthodox audiences.

Rosenfeld was born in Tel Aviv and moved to Woodmere, New York, with his family when he was seven years old. His parents spoke only Hebrew at home and the family spent their summers in Israel. He graduated from George W. Hewlett High School in 1988 and Boston University in 1992, majoring in psychology and minoring in voice.

Rosenfeld studied cantorial music at Yeshiva University's Belz School of Music. He was a Wall Street international banker for Merrill Lynch before entering comedy.

Modi is an established headliner at comedy clubs across the United States and is a regular fixture on the comedy scene in both New York and Los Angeles. His home club is the Comedy Cellar. Modi has performed for Orthodox, Reform and other non-Orthodox audiences internationally. He performed at the launch party of the late Israeli astronaut Ilan Ramon in Houston before takeoff.

Rosenfeld is known for having a particularly large following among Orthodox audiences, performing at yeshivas, National Council of Young Israel affiliates, Hatzalah, Chabad telethons and Eshel. He has also performed for special Shabbat dinners for the Council of Fashion Designers of America.

Rosenfeld has contributed to US Weekly as a member of the fashion police. He was a semi-finalist on the fourth season of Last Comic Standing.

Rosenfeld cites Don Rickles, Jackie Mason, George Carlin, and Louis CK as his comedic inspirations.

The City of New York proclaimed June 26, 2018 "Mordechi 'Modi' Rosenfeld Day".