Guerra is a Portuguese, Spanish and Italian term meaning "war". Notable people with the surname Guerra include:
Arts
- Aaron Guerra, American guitarist
- Adam Daniel Guerra, American drag queen also known as Venus D-Lite
- Ana Clara Guerra Marques, Angolan dancer
- Andrea Guerra (composer), Italian composer
- Aureliano Fernández-Guerra, Spanish historian, poet and playwright
- Carlos Rivera Guerra, Mexican singer
- Carolina Guerra, Colombian model and actress
- Cástulo Guerra, Argentine actor
- César Guerra-Peixe, Brazilian violinist
- Ciro Guerra, Colombian film director, screenwriter
- Ely Guerra, Mexican singer
- Gabriel Guerra, Mexican sculptor
- Giovanni Guerra, Italian painter
- Gregório de Matos e Guerra, Brazilian poet
- Juan Luis Guerra, Dominican singer
- Marcelino Guerra, Cuban singer
- María Inés Guerra, Mexican singer
- Pedro Guerra, Spanish singer
- Pia Guerra, Canadian comic book artist
- Raquel Guerra, Portuguese singer
- Rita Guerra, Portuguese singer
- Robert Guerra, American set designer
- Rosa Guerra Argentine educator, journalist, writer
- Ruy Guerra, Portuguese-Brazilian actor and director
- Shekhar Gurera, Indian cartoonist
- Tom Guerra, American guitarist
- Tonino Guerra, Italian screenwriter and poet
- Wendy Guerra, Cuban writer
- Yalil Guerra, Cuban guitarist
Sport
- Aidan Guerra, Australian rugby footballer
- Alejandra de la Guerra, Peruvian volleyball player
- Alejandro Guerra, Venezuelan footballer
- Andrea Guerra (footballer) Italian footballer
- Ariana Guerra, American gymnast
- Ascension Guerra, Spanish archer
- Aumi Guerra, Dominican bowler
- Brent Guerra, Australian footballer
- Deolis Guerra, Venezuelan baseball player
- Elvira Guerra, Italian equestrienne
- Feliciano López Diaz-Guerra, Spanish tennis player
- Hugo Guerra, Uruguayan footballer
- Jackie Guerra (footballer), American-born Puerto Rican footballer
- Javy Guerra, American baseball player
- Juan Carlos Rojas Guerra, Mexican footballer
- José Guerra (diver), Cuban diver
- Juan Guerra (footballer, born 1927), Bolivian footballer
- Juan Guerra (footballer, born 1991), Spanish footballer
- Juan Francisco Guerra Venezuelan footballer
- Junior Guerra, Venezuelan baseball player
- Kleber Guerra, Brazilian footballer
- Learco Guerra, Italian cyclist
- Lisandra Guerra (1987), Cuban cyclist
- Martín Alejandro Machón Guerra, Guatemalan footballer
- Mike Guerra, Cuban baseball player
- Miguel Ángel Guerra, Argentinian racer
- Miguel Ángel Cascallana Guerra, Spanish handball player
- Naomie Guerra, Trinidadian footballer
- Patricia Guerra, Spanish sailor
- Paulo Guerra, Portuguese runner
- Pedro Ramos Guerra, Cuban baseball player
- Pietro Guerra, Italian cyclist
- Rafael Sánchez Guerra, Spanish football club president
- Silvio Guerra, Ecuadorian runner
- Simone Guerra, Italian footballer
- Waldir Guerra, Salvadoran footballer
Politics
- Abel Guerra, Mexican politician
- Abílio Manuel Guerra Junqueiro, Portuguese politician
- Alberto Begné Guerra, Mexican politician
- Alfonso Guerra, Spanish politician
- Braulio Guerra, Mexican politician
- Gabriel Guerra-Mondragón, American diplomat
- José Amado Ricardo Guerra, Cuban politician
- José Gutiérrez Guerra, Bolivian President
- Juan Nicasio Guerra, Mexican politician
- Marcela Guerra, Mexican politician
- Marcela Guerra Castillo, Mexican politician
- Pablo de la Guerra, American politician
- Pedro Cevallos Guerra, Spanish diplomat
- Reynaldo Guerra Garza, American judge