Alwan is a surname.
Notable people with the surname include: Abeer Alwan, American speech processing researcher Ahmad Salah Alwan (born 1982), Iraqi footballer Amer Alwan (1957–2023), Iraqi-French film director and actor Jassem Alwan (born 1928), Syrian Army colonel Nisreen Alwan, British–Iraqi public health researcher Sahim Alwan, Yemeni-American arrestee Yahya Alwan (born 1956), Iraqi national and Olympic coach