High Quality Content by WIKIPEDIA articles! Hassan is an Irish, Arabic and Hebrew surname. It is spelled either Hasan, Hassan, Hassen, Hasson, Hassin, Hassine, Hacen, Hasen, Hasin, Hass, Hassa, Hasa, Haas, Cassin, Chassan, Chasan, Khassan, Khasan, Cassan, Casan, Hasso, Hassanein, Hassani, Hasani, Alhassan, Al-Hassan, Hasanov, Hasanovic, O'Hassan or Hasaan