Maraj is a Hindu surname derived from the word Maharaj. Notable individuals bearing the surname include:
- Bhadase Maraj (1929-1971), a Trinidad and Tobago politician, religious leader and businessman
- Ishwar Maraj (b 1969), member of the St Lucia cricket team
- Ralph Maraj, a Trinidad and Tobago politician, playwright and teacher
- Nicki Minaj (b 1982), an American rapper and singer-songwriter, born Onika Maraj