Faizul (Bengali: ফয়জুল) is a masculine given name. It can be found in Bangladesh, Malaysia, India, and Pakistan. Notable people with this name include:

• Faizul Amri Adnan (born 1973), a Malaysian politician
• Faizul Hasan, a Bangladeshi politician
• Syed Faizul Hassan Shah, a Pakistani politician
• Faizul Islam (born 1986), a Bangladeshi cricketer
• Faizul Latif Chowdhury (born 1959), a Bangladeshi civil servant
• Syed Faizul Karim (born 1973), a Bangladeshi Islamic scholar and politician
• Faizul Mahi (1939–1971), a Bangladeshi intellectual
• Faizul Waheed (1964–2021), an Indian Islamic scholar and jurist