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, 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