Cunha is a Galician and Portuguese surname of toponymic origin, documented since the 13th century.^[1]

Notable people having this surname include:

• Aécio Ferreira da Cunha (1927–2010), Brazilian politician
• Alexandra Cunha (born 1962), Portuguese marine biologist
• Alexandre da Cunha (born 1969), Brazilian-British artist
• Álvaro da Cunha (1371–?), Portuguese nobleman
• Álvaro Soares da Cunha (c. 1466–1557), Portuguese nobleman
• Alvito D'Cunha (born 1978), Indian footballer
• Amaro da Cunha (1912–1988), Brazilian rower
• Ambrósio Leitão da Cunha (1825–1898), Brazilian lawyer and politician
• António Dias da Cunha (born 1933), Portuguese businessman
• Arthur Cunha (born 1990), Brazilian footballer
• Brasílio Itiberê da Cunha (1846–1913), Brazilian composer
• Carlos Alberto Cunha (1959–2016), Brazilian judoka
• Celso Ferreira da Cunha (1917–1989), Brazilian professor, philologist and essayist
• Colin D'Cunha, Canadian physician
• David Da Cunha (born 1983), French football player
• Delfina Benigna da Cunha (1791–1857), Brazilian poet
• Diego Ribas da Cunha (born 1985), Brazilian international footballer
• Domingos da Cunha (c. 1598–1644), the Cabrinha, Portuguese Jesuit painter
• Edgar Moreira da Cunha (born 1953), Brazilian-born American prelate
• Eduardo Cunha (born 1958), former president of the Brazilian Chamber of Deputies 2015–2016
• Euclides da Cunha (1866–1909), Brazilian journalist, sociologist and engineer
• Francisco de Vasconcelos da Cunha (c. 1590–c. mid 17th century), Portuguese colonial administrator
• Francisco Maria da Cunha (1832–1909), Portuguese military, political and colonial administrator
• Gerard da Cunha (born 1955), Indian architect
• Gerson da Cunha (c. 1927–2022), Indian actor
• Ignatius D'Cunha (1924–2007), Indian bishop
• Joanne Da Cunha (born 1990), Indian actress, singer and model
• João Cunha (disambiguation), multiple people
• John da Cunha (1922–2006), British barrister and circuit judge
• John Michael D'Cunha (born 1959), Indian judge
• José da Cunha (disambiguation), multiple people
• Juliana Carneiro da Cunha (born 1949), French-Brazilian actress and dancer
• Lucas Da Cunha (born 2001), French-Portuguese footballer
• Dom Luís da Cunha (1662–1749), Portuguese diplomat
• Leander D'Cunha (born 1977), Indian footballer
• Lix da Cunha (1896–1984), Brazilian engineer, architect, developer
• Luis Veiga da Cunha (born 1936), Portuguese scientist
• Manuela Carneiro da Cunha (born 1943), Portuguese-Brazilian anthropologist
• Marco Aurélio Cunha dos Santos, better known as Marco Aurélio (born 1967), Brazilian footballer
• Maria Adelaide Coelho da Cunha (1869–1954), Portuguese socialite
• Maria da Cunha (1872–1917), Portuguese poet and journalist
• Maria da Graça Amado da Cunha (1919–2001), Portuguese classical pianist
• Maria do Carmo, better known as "Carmen Miranda" da Cunha (1909–1955), singer, actress and dancer
• Martim Lourenço da Cunha (1300–?), Portuguese nobleman
• Matheus Cunha (born 1999), Brazilian footballer
• Nani (born 1986), real name Luis da Cunha, Portuguese international footballer
• Neil D'Cunha, Indian Malayali cinematographer
• Nuno da Cunha (c. 1487–1539), governor of Portuguese possessions in India from 1528 to 1538
• Osvaldo Cunha (born 1943), Brazilian footballer
• Osvaldo Rodrigues da Cunha (1928–2011), Brazilian herpetologist
• Pedro Correia da Cunha (1440–1497), Portuguese nobleman
• Rodrigo da Cunha (1577–1643), Portuguese prelate
• Samuel Lopes da Cunha (born 1984) Brazilian footballer
• Shayne D'Cunha (born 1996), Indian-born Australian soccer player
• Sylvester da Cunha (1930–2023), Indian advertising professional, actor, social worker and author
• Talles Cunha (born 1989), Brazilian footballer
• Thiago Cunha (born 1985), Brazilian–born East Timorese footballer
• Tiago Carneiro da Cunha (born 1973), Brazilian artist
• Tristão da Cunha (1460–1540), Portuguese explorer and naval commander
• Tristão de Bragança Cunha (1878–1938), Indian nationalist and anti-colonial activist
• Tristão Ferreira da Cunha (1890–1974), Brazilian politician, lawyer and scholar
• Virginia da Cunha (born 1981), Argentine singer, actress and dancer
• Waldemar Esteves da Cunha (1920–2013), Brazilian King Momo
• Zeca Cunha (1935–2013), Hong Kong field hockey player

Locations with the name Cunha include:

• Cunha, São Paulo, a municipality in the state of São Paulo in Brazil
• Cunha Porã, a municipality in the state of Santa Catarina in the South region of Brazil
• Flores da Cunha, a municipality in the state of Rio Grande do Sul, Brazil
• Tristan da Cunha, a remote group of volcanic islands in the south Atlantic Ocean