Seyyed Abdollah Behbahani (Persian: سیدعبدالله بهبهانی‎, 1840–1910) was a Shi'a theologian and a prominent leader of the constitutional movement. He was born in Najaf and was educated by scholars such as Morteza Ansari.[1] During the constitutional movement he was influential in the Majlis. On the night of 15 July 1910, four gunmen attacked his house and killed him.