Could Kolly be a first name for a baby girl?
I think it would work better as a nickname, maybe for [name_f]Colette[/name_f], [name_f]Colleen[/name_f], or Collena. Collena would be my pick, I like that it could also be nn [name_f]Lena[/name_f].
i think most would think it was a misspelling of [name_u]Kelly[/name_u]
It reminds me of colic so I wold say no. Maybe as a NN?
It’s very unusual, which is not in itself a bad thing, but that does mean you may have to spell and explain it a lot. People may ask what it’s short for.
I like the idea of using it for a pet form of [name_f]Coleen[/name_f], [name_f]Colette[/name_f], [name_f]Cordelia[/name_f], [name_f]Kalliope[/name_f], [name_f]Caroline[/name_f].
I personally would prefer it as a nickname. There is an Instagram influencer with a daughter named [name_f]Kollyns[/name_f] with nn Kolly.