Sheikh (Rabbi) Abdullah bar Sam (Arabic: عبدالله ابن سام; born in Qal'at Saleh, Iraq; died 1981, Baghdad, Iraq) was an Iraqi Mandaean priest.

[3]: 44 Abdullah bar Sam was born into the Manduia and ‛Kuma families in Qal'at Saleh, Iraq, probably sometime just before the turn of the 20th century.

His father's name was the Ganzibra Sam, son of Sheikh Jabbar.

[1] Ganzibra Abdullah copied the Ginza Rabba by hand in 1928; as of 2010, that copy of the Ginza Rabba belonged to the Elmanahi family in New York state, United States.

[1]: 65–66 In 1948, he initiated Jabbar Choheili from Ahvaz, Iran into the priesthood.