I know that
Atlas was a name in the ancient world, but for me it's a type of book. The fact that you want to name a kid after a book of maps is odd. Would you name your son Dictionary? Or Thesaurus?
If I try and forget what an atlas is and focus strictly on the name itself...I still say I'm not wild about it. It reminds me too much of
Atticus, a name I despise. Does
Atlas have any nns that might make the name palatable to me? All I can think of is Att, or maybe Attie.