Casas is a Spanish surname. Notable people with the surname include:
Acting Antonio Casas (1911–1982), Spanish actor Mario Casas (born 1986), Spanish actor Óscar Casas (born 1998), Spanish actor
Art David Zamora Casas, Mexican-American visual artist, performance artist, and community activist Juan Francisco Casas (born 1976), Spanish artist and poet Mel Casas (1929–2014), American-born artist, activist, writer and teacher Ramon Casas i Carbó (1866–1932), Spanish artist
Law Fernando Vizcaíno Casas (1926–2003), Spanish labour lawyer, journalist, and writer María Emilia Casas (born 1950), Spanish jurist Mariana Casas (born 1959), Argentine lawyer
Politics David Casas (born 1971), American politician in Georgia Roberto Casas (born 1931), Cuban-born American politician in Florida Sergio Casas (born 1971), Argentine politician
Sports Cycling Ana Teresa Casas (born 1991), Mexican racing cyclist Claudio José Casas (born 1982), Spanish road racing cyclist Félix García Casas (born 1968), Spanish road cyclist Helena Casas (born 1988), Spanish track cyclist from Catalonia Iván Casas (born 1980), Colombian racing cyclist José Casas (cyclist) (born 1945), Spanish racing cyclist Julia Casas (born 1980), Spanish racing cyclist Miguel Casas (1920–2003), Spanish cyclist
Football (soccer) Aitor Casas (born 1992), Spanish footballer Atzimba Casas (born 1994), American-born Mexican footballer Bryan Casas (born 2004), Mexican footballer Diego Casas (born 1995), Uruguayan footballer Gastón Casas (born 1978), Argentine footballer and manager Ismael Casas (born 2001), Spanish footballer Javier Casas (footballer, born 1982), Spanish footballer Jesús Casas (born 1973), Spanish football manager Javier Casas (soccer, born 2003), American soccer player Louie Casas (born 1986), Filipino footballer Marcelo Casas (born 1992), Paraguayan-Spanish footballer Tomás Casas (born 1996), Argentine footballer Yancarlo Casas (born 1981), Peruvian footballer
Wrestling Casas wrestling family, a Mexican family of luchadors, or professional wrestlers Canelo Casas (born 1982), Mexican wrestler Danny Casas (born 1986), Mexican wrestler Negro Casas (born 1960), Mexican wrestler
Other Ana María Casas (born 1995), Mexican gymnast André Casas (1934–2021), French rugby player Iker Casas (born 1999), Mexican taekwondo practitioner Ivo Casas (born 1992), Portuguese volleyball player Jordi Casas (born 1976), Spanish field hockey player Mireia Casas (born 1969), Spanish windsurfer Queralt Casas (born 1992), Spanish basketball player Ricard Casas (born 1962), Spanish basketball coach Shaine Casas (born 1999), American swimmer Triston Casas (born 2000), American baseball player Víctoria Casas, Mexican swimmer
Other Antoni Vila Casas (born 1930), Spanish pharmaceutical executive Arthur Casas, Brazilian architect Borita Casas (1911–1999), Spanish journalist, playwright and author Carlos Casas (born 1974), Spanish filmmaker Creu Casas (1913–2007), Spanish botanist from Catalonia Estela Casas (born 1961), American health advocate and news anchor Flora Osete Casas (1883–?), Spanish lexicographer, translator, and writer Germán Casas (born 1939), Chilean singer Myrna Casas (1934–2022), Puerto Rican playwright and director Penelope Casas (1943–2013), American food writer Rosalba Casas (born 1950), Mexican-born professor of history and socio-politics in Canada
See also Louis-François Cassas (1756–1827), French artist, architect, and archeologist Casas (disambiguation)