Marlenis Costa Blanco (born 30 July 1973)[1] is a Cuban former volleyball player and three-time Olympic champion.

[2][3][4] As a setter, she was one of the key players in the dominance of the Cuban national team in the 1990s.

[5] Costa won gold medals in the 1991, 1995, and 1999 FIVB World Cups in Japan.

[1] Costa also helped Cuba win the 1994 FIVB World Championship in Brazil and the 1998 FIVB World Championship in Japan.

[1] While representing Cuba, Costa also won gold medals in the 1991 Pan American Games in Havana and the 1995 Pan American Games in Mar del Plata, and won a silver medal in the 1999 Pan American Games in Winnipeg.