 Navas made his debut in the FIFA World Cup on 14 June 2014, appearing in a 3–1 group stage win against Uruguay in Fortaleza, and started the other two group games only conceding a single goal as Costa Rica qualified for the knockout stages as group winners for the very first time.On 29 June, in the round of 16 match against Greece, Navas was named man of the match after several saves in normal time and a save from Theofanis Gekas' kick during the penalty shootout, which led to Costa Rica reaching the quarter-finals for the first time ever.He ended the tournament with three clean sheets from five matches, as the country was knocked out by the Netherlands after a penalty shootout, where he was named man of the match for the third time, the only goalkeeper to do so.