Isaac Pupo (born October 23, 1985 in Monrovia) is an Liberian footballer (midfielder) who Lastly played for Kelantan FA. He also plays for Liberia national football team.In August 2007 Pupo signed for FK Qarabağ in the Azerbaijan Premier League on a one-year contract. Whilst with Qarabağ, Pupo won the player of the month and attracted interest from several Turkish sides, namely Denizlispor, Trabzonspor and Gençlerbirliği OFTAŞ.