Other ways are Dayana,Dayanna and so on..
It is a given name that is for girls.It is a actually rare name or/and surname which is latin and means divine or goddess.
For more information :
Dyana is incredibly straight forward,I must say.
She has big beautiful eyes and she is small but so cute that you want to pick her up
She smiles all the time and when she smiles it makes you want to smile
She's gorgeous shes is so Diana
Look at those beautiful eyes she is so Diana
"Dyana is so cool I'd let her wipe my ass any day of the week."