Idelson may refer to:
People with the surname Idelson: Beba Idelson (1895-1975), Israeli politician Benjamin Idelson (1911-1972), Israeli architect Bill Idelson (1919-2007), American actor and scriptwriter Ivan Idelson (1959-1994), philosopher, engineer, therapist and mathematician Naum Idelson (1885–1951), Russian astronomer Vladimir Idelson (1858–1954), Russian banker
Other: Idel'son (crater), lunar crater named after Naum Idelson Idelson Pharmacy, landmark in the city of Taganrog
See also Abraham Zevi Idelsohn (1882–1938), Jewish ethnologist