There is nothing wrong with calling a girl Meera

No File Exists
Check below answers in case you are looking for other related questions:
Etiquette of naming children
When calling an illegitimate child after his mother will cause harm

No File Exists
Related Answers:
Ruling on using “ ‘Aashiq al-Sama’ (Lover of Heaven)” as a user name
Is al-Ahad one of the names of Allaah?
Should she change her name after becoming Muslim so that she can go for Hajj?
Etiquette of naming children
When calling an illegitimate child after his mother will cause harm

Recommended answers for you:
Wants to marry Christian woman
Why do we pray Zuhr and ‘Asr silently?
Being Successful in Life
Ruling on using the masbahah (prayer beads)
Ruling on the crime of rape