Rabban may refer to:
- Glossu Rabban, a character from Frank Herbert's Dune (1965)
- Joseph Rabban (8th century), Jewish merchant
People with the given name Rabban:
- Ali ibn Sahl Rabban al-Tabari (circa 838-870), Jewish scientist
- Rabban Bar Sauma (circa 1220-1294), Chinese Christian
- Rabban Markos, Patriarch of the Church of the East
- Simeon Rabban Ata (13th century), high representative of Syriac Christianity
Jewish teachers given the title Rabban, a title traditionally given to the head of the Sanhedrin during Tannaitic times:
- Rabban Yochanan ben Zakai
- Rabban Gamaliel
- Rabban Shimon ben Gamaliel
- Rabban Gamaliel II of Yavneh
- Rabban Shimon ben Gamaliel II