Horta is a Portuguese surname. Notable people with the surname include:
Adolfo Horta (1957–2016), Cuban boxer André Horta (born 1996), Portuguese footballer Andréia Horta (born 1983), Brazilian actress Carolina Horta (born 1992), Brazilian beach volleyball player Francisco Horta (born 1993), Mexican boxer Luís Horta (born 1952), Portuguese former footballer Maria Teresa Horta (1937–2025), Portuguese feminist poet, novelist, journalist, and activist Oscar Horta (born 1974), Spanish animal activist and moral philosopher Ricardo Horta (born 1994), Portuguese footballer Silvio Horta (1974–2020), American screenwriter and television producer Victor Horta (1861–1947), Belgian architect
See also Salvador of Horta (1520–1567), Spanish saint José Ramos-Horta (born 1949), East Timor politician