[SMGFan]

The founder of media conglomerate CatCo Cat Grant named her. she is portrayed by Calista Flockhart. Cat said she herself is a girl.

[tanknetter]

The founder of media conglomerate CatCo Cat Grant named her. she is portrayed by Calista Flockhart. Cat said she herself is a girl.

Yup, noticed that in the trailer too.

Guessing that the ONLY way they can comfortably "explain" the Supergirl monicker is that it was a very cynical marketing decision made by a Devil Wears Prada-type female executive.