Mainul Islam or Mohammad Mainul Islam may refer to:
Muinul Islam (born 1950), Bangladeshi economist Mohammad Mainul Islam (general) (born 1959), Bangladeshi lieutenant general Md. Mainul Islam (police officer), Bangladeshi diplomat and police officer Moinul Islam (cricketer, born 1992), Bangladeshi cricketer Moinul Islam (cricketer, born 1996), Bangladeshi cricketer
See also Monirul Islam (disambiguation)