Garza is a Spanish surname and the Spanish word for the heron. Garza has also become a part of many placenames.
People bearing the name include:
- Aarón Sáenz Garza (1891–1983), Mexican politician
- Ale Garza (born 1977), American comic artist
- Alex Garza (born 1994), American politician
- Alicia Garza (born 1981), American civil rights activist known for co-founding Black Lives Matter
- Cayetano Garza (born 1972), American comic designer and illustrator
- Daniel Garza (born 1985), Mexican tennis player
- Daniel "Dani Doom" Garza, a former member of the band Design the Skyline
- Ed Garza (born 1969), former mayor of San Antonio, Texas
- Emilio M. Garza (born 1947), American judge on the United States Court of Appeals for the Fifth Circuit
- Eugenio Garza Lagüera (1923–2008), Mexican businessman and philanthropist
- Eugenio Garza Sada (1892–1973), Mexican industrialist and philanthropist, father of Garza Lagüera
- Jaime Garza (actor) (1954–2021), Mexican actor
- Jaime Garza (boxer) (born 1959), Mexican American boxer
- John Garza (born 1955), American politician
- José Garza, American lawyer and district attorney
- José María Garza Galán (1846–1902), Mexican politician and governor of Coahuila
- Juan Raul Garza (1956–2001), American murderer
- Justin Garza (born 1994), American baseball player
- Lázaro Garza Ayala (1830–1913), Governor of Nuevo León (1869)
- Luka Garza (born 1998), American basketball player
- Mariana Garza (born 1970), Mexican singer and actress
- Matt Garza (born 1983), American baseball player
- Mauricio Fernández Garza (born 1950), Mexican politician, businessman and collector
- Manuel Uribe Garza (1965–2014), one of the heaviest people who ever lived
- Pablo González Garza (1879–1950), a general during the Mexican Revolution, considered to be the main organizer of the assassination of Emiliano Zapata
- Pablo Garza (fighter) (born 1983), American lightweight mixed martial arts fighter
- Ralph Garza Jr. (born 1994), American baseball player
- Reynaldo G. Garza (1915–2004), the first Mexican American federal judge in the United States
- Roque González Garza (1885–1962), Mexican president
- Tony Garza (born 1959), Mexican-American politician, current ambassador of the United States to Mexico and husband of María Asunción Aramburuzabala, the richest woman in Mexico
- A family of professional wrestlers:
- Angel Garza (born 1992), known in the US as Angel Garza (without the acute accent)
- Héctor Garza (1969–2013), ring name of Héctor Solano Segura; uncle of Angel Garza and Humberto Carrillo
- Humberto Garza Carrillo (born 1995), known as Humberto Carrillo
- The three members of American band Los Lonely Boys:
- Henry Garza (born 1978), guitarist and vocalist
- Jojo Garza (born 1980), bass player and vocalist
- Ringo Garza (born 1981), drummer and vocalist
