Károly Lakat (27 November 1920 – 3 December 1988) was a Hungarian footballer and coach.
Lakat played for Gyori AC, Szegedi AK and Ferencvárosi TC and was capped 13 times for Hungary.
Lakat coached Gödölloi Dózsa, Vörös Meteor, Szegedi Haladás, Tatabányai Bányász, Hungary, Hungary (Olympic), MTK, Ferencvárosi TC, Budapest Honvéd, Salgótarjáni BTC, Volán SC and Debreceni VSC.