Miah (মিঞা / মিয়া), is a Bengali word used to refer to a gentleman and is also used as a surname. People with the surname include:
- Abu Taher Miah (c.1932–2004), Bangladeshi industrialist and politician
- Andrew Muzaffar Miah, Anglo-Bangla bioethicist and journalist
- Badrul Miah, convicted of the racially motivated murder of Richard Everitt
- Badsha Miah, Bangladeshi kabaddi player
- Bonde Ali Miah (1906–1979), Bangladeshi poet
- Dhir Ali Miah (1920–1984), Bangladeshi flute player, composer, director and orchestra conductor
- Ellis Miah, American songwriter, record producer, composer, vocalist and DJ of Bangla-Caribbean descent
- Fazal Karim Miah, Indian politician
- Hammad Miah (born 1993), English professional snooker player
- Kaptan Miah (1872-1922), politician, lawyer and entrepreneur
- Kola Miah (1895-1948), first Agriculture Minister of Pakistan
- M. A. Wazed Miah (1942–2009), Bangladeshi nuclear scientist
- Mohammad Mamun Miah (born 1987), Bangladeshi footballer
- Mohammad Moniruzzaman Miah (c.1935–2016), Bangladeshi academic
- Moina Meah, Bangladeshi restaurateur and social reformer
- Muhammad Shahjahan Miah, Bangladeshi politician
- Nurul Haque Miah (1944-2021), Bangladeshi professor of chemistry
- Rana Miah, Bangladeshi cricketer
- Saiman Miah (born 1986), British-Bangladeshi architectural designer and graphic designer
- Sheikh Sujat Mia, former MP for Habiganj-1
- Tamanna Miah, British Bangladeshi activist
- Tofazzal Hossain Manik Miah (1911–1969), Bengali journalist and politician
- Tommy Miah, Bangladeshi British chef
- Wakil Miah, Bengali politician and lawyer