Karanj or Karenj may refer to:Karanj, Kohgiluyeh and Boyer-Ahmad, Iran Karanj, Dezful, Khuzestan Province, Iran Karanj, Izeh, Khuzestan Province, Iran Karanj, Gujarat, India Karanj, Pongamia pinnata, a species of tree in the pea family, Fabaceae, native to Asia INS Karanj (S21), a diesel-electric submarine of the Indian Navy