Chelo Alonso (born Isabel Apolonia García Hernández, 10 April 1933 – 20 February 2019) was a Cuban actress who became a star in Italian cinema, and ultimately a 1960s cult film heroine and sex symbol in the U.S. She was well known for playing femmes fatales with fiery tempers and sensual dance scenes.

Alonso was born Isabel Apolonia García Hernández in Central Lugareño, Camagüey, Cuba, to a Cuban father and Mexican mother.

Alonso was first noticed internationally in the 1959 film, Nel segno di Roma (Sheba and the Gladiator), which starred Anita Ekberg and Georges Marchal.

These films required exotic talent, and Alonso's dark beauty fit the bill; she even starred with Steve Reeves himself in Goliath and the Barbarians (1959) and Morgan il pirata (1960).

Chelo then made a brief appearance in a variation of that previous role, also called Dolores, in another cult western, the bizarre Night of the Serpent (aka Nest of Vipers) after which she abandoned the film scene and focused on Italian TV.