Firmin is a French surname and masculine given name, from the Late Latin Firminus, a derivative of firmus meaning "firm" or "steadfast". The instruction of St Paul to "be steadfast in the faith" gave the name great popularity among early Christians.
People with the surname
Agnès Firmin-Le Bodo (born 1968), French politician
Anténor Firmin (1850–1911), Haitian anthropologist, journalist and politician
Col Firmin (1940–2013), Australian politician
Giles Firmin (1614–1697), English minister and physician
Hannah Firmin (born 1956), English illustrator, daughter of Peter Firmin
Mickaël Firmin (born 1990), French professional footballer
Peter Firmin (1926–2018), English artist and animator
Thomas Firmin (1632–1697), English businessman and philanthropist
Philip Firmin, title character of the 1861–62 novel The Adventures of Philip by W. M. Thackeray
People with the given name
Firmin Abauzit (1679–1767), French scholar
Firmin António, Brazilian businessman
Firmin Ayessa (born 1951), Congolese politician
Firmin Bouisset (1859–1925), French painter and poster artist
Firmin V. Desloge (1843-1929), French-American industrialist and philanthropist in St. Louis Firmin Didot (1764–1836), French printer and engraver Firmin Dugas (1830–1889), Canadian businessman and politician Firmin Flamand, Belgian Olympic archer (fl. 1920) Firmin Gillot (1820–1872), photography pioneer Firmin Lebel (died 1573), French composer and choir director Firmin Lambot (1886–1964), Belgian cyclist Firmin Marbeau (1798–1875), French philanthropist Firmin Monestime (1909–1977), Haitian politician and medical doctor Firmin Sanou (born 1973), Burkina Faso footballer Firmin Martin Schmidt (1918-2005), American Roman Catholic bishop Firmin Swinnen (1985-1972), Belgian theatre organist Pascal-Firmin Ndimira (b. 1956), Prime Minister of Burundi (1996–98)