Cortnee \c(o)-rt-nee, cor-tnee\ as a girl's name is a variant of Courtney (Old French), and the meaning of Cortnee is "domain of Curtius".
The baby name Cortnee sounds like Courtnee, Cortnie and Cortney. Other similar baby names are Fortnee, Corynne, Corinne, Corine, Corene, Corenne, Cornie, Kourtnee, Kortney, Courtnie, Cortny, Corteney, Cordney, Fortney, Fortnie and Fortnea.