Alta is a feminine given name and a nickname. It may refer to:

Given name Alta Bates (1879–1955), American nurse anesthetist, founder and director of the hospital now known as Alta Bates Summit Medical Center Alta Charo (born 1958), American bioethicist and law professor Alta Fixsler (2018–2021), British girl with Haredi parents who died after her life support was removed, subject of a best interests case Alta Gerrey (1942–2024), aka Alta (poet), American poet and prose writer Alta M. Hulett (1854–1877), American lawyer Alta Kotze (born 1971), South African former cricketer Alta Little (1923–1999), American baseball player in the All-American Girls Professional Baseball League Alta Rockefeller Prentice (1871–1962), American philanthropist and socialite Alta Schrock (1911–2001), American biology professor and community activist, first Mennonite woman in the United States to earn a Ph.D. Alta Faige Teitelbaum (1912–2001), Polish-born American Hasidic community leader Alta Corbett Thomas (1918–2017), American pilot for the Women Airforce Service Pilots Alta Walker (1942–2015), American geologist Alta Weiss (1890–1964), American semiprofessional minor league baseball pitcher Alta Allee Willis (1947–2019), American songwriter and art director

Nickname Albert Alta Cohen (1908–2003), American Major League Baseball player Aletta Alta Schutte (born 1977), South African medical researcher