All Tennis Players How Many Grand Slams Has Marin Cilić Won? Marin Čilić (Croatian pronunciation: [mâriːn tʃǐːlitɕ]; born 28 September 1988) is a Croatian professional tennis player.Marin Cilić has won 1 Grand Slam.Marin Cilić has won 1 Grand Slam. Facebook Twitter Email How Many Grand Slams Has Aryna Sabalenka Won? How Many Grand Slams Has Carlos Alcaraz Won? How Many Grand Slams Has Elena Rybakina Won?