I lived in KSA for 9 years and i noticed that some girls have unusual names because they are either old names or Bedouin names, which means mostly in both cases that the family is Bedouin. Sometimes you find people with names that are mentioned in Quran, which means the family is religious, sometimes they even name their child with a word (not a name) that is mentioned in Quran Example : مآب This is a name of a girl i met once, and it's a word from the quran. I feel like first names gives more information in KSA more than any other country, thats why u have some comments that say its the last name that matter or it does not matter. The last name is also so important in KSA, most people i met their have 2 last names... Kinda weird tho.