Fazlul Karim () is a Bengali masculine given name of Arabic origin, meaning bounty of the Generous One. Bearers of the name include:
Sheikh Fazlul Karim Mona (1882–1936), poet and writer Fazlul Karim Shiqdar (1905–1986), lawyer, businessman, politician and soldier Mohammad Fazlul Karim (1927–2015), lawyer and politician Dr. Abu Ahmad Fazlul Karim Bhuiyan (1928–1987), physician and politician Sardar Fazlul Karim (1925–2014), academic, philosopher and essayist Syed Fazlul Karim (1935–2006), Islamic scholar and politician Fazlul Karim (born 1937), politician Mohammad Fazlul Karim (1943–2024), 18th Chief Justice of Bangladesh Sheikh Fazlul Karim Selim (born 1947), Minister of Health and Family Welfare
See also A. B. M. Fazle Karim Chowdhury (born 1954), Bangladeshi politician Muhammad Fazal Karim (1954–2013), Pakistani politician Fazal Karim Miah (born 1951), West Bengali politician