The name Daenerys is a girl's name . Daenerys and is often added to lists like Fictional Princess Names and discussed in our forums with posts like "Release the 20 C.O.B.R.A.S. -- the anti-elimination game! (Girls)".
From the experts:
Daenerys is yet another girls' name invented by "Game of Thrones" author George R. R. Martin that is beginning to gain some traction in real life. Daenerys was used for 67 baby girls in 2013 while one of the character's titles, Khaleesi, was given to 241 baby girls. And the name Arya, also from the hyper-popular series, is one of the fastest growing girls' names in the country.