Johnny Acosta Zamora is a Costa Rican football player, currently playing for Rionegro Aguilas, and for the Costa Rica national football team. He plays as a defender.

Acosta made his professional debut for Santos de Guapiles in the 2004-05 season and left them in 2010 for Alajuelense with whom he won three league titles. In January 2013, he moved abroad to have a six-month loan spell at Mexican second division side Dorados. In 2018, he joined Rionegro Aguilas.

A relatively late newcomer to the national team set-up, Acosta made his debut for Costa Rica in a March 2011 friendly match against Argentina aged 29. He has represented his country in seven FIFA World Cup qualification matches and played at the 2011 CONCACAF Gold Cup and the 2011 Copa America. In June 2014, Acosta was included in Costa Rica's squad for the 2014 FIFA World Cup and made his debut in the competition during the round of 16 match against Greece as a substitute. In May 2018 he was named in Costa Rica's 23 man squad for the 2018 World Cup in Russia.