Siqueira is a Portuguese surname. Notable people with the surname include:
Ethevaldo Mello de Siqueira (1932–2022), Brazilian journalist Indianarae Siqueira (* 1971), Brazilian activist Maria Könning-de Siqueira Regueira (* 1954), German diplomat Marco Aurélio Siqueira (* 1970), Brazilian footballer Luciano Siqueira de Oliveira (* 1975), Brazilian footballer Cláudio Roberto Siqueira Fernandes (* 1980), Brazilian footballer Henry Siqueira-Barras (* 1985) Brazilian-Swiss footballer Guilherme Siqueira (* 1986), Brazilian footballer