Nachman Shai (Hebrew: נחמן שי‎; born 28 November 1946) is an Israeli journalist and politician who served as Israel's Minister of Diaspora Affairs.

In April 2024 he was appointed Dean of the Hebrew Union College-Jewish Institute of Religion Taube Family Campus in Jerusalem.

He studied communications at the World Press Institute in Minnesota, and worked as a research fellow in the Shorenstein Center in the JFK School of Government at Harvard University.

During the Gulf War of 1991, when Israel was targeted by Iraqi missiles, his job was to calm Israelis in sealed rooms.

When Israel's 36th government was formed, Labor leader Merav Michaeli named Shai her party's nominee for Minister of Diaspora Affairs; the nomination was confirmed on 12 June.