Your father's sister is your aunt.
Your aunt's daughter is your first cousin.
Your first cousin's daughter is your first cousin, once removed.
I think is your niece because
your dad's sister is your aunt
your aunt's daughter is your cousin
your cousin' daughter is your niece
The father's sister is called aunt. Aunt by definition has the meaning of either the sister of your father or mother or the wife of your uncle.
Aunt
1st Cousin
Your sister's daughter is your niece. If you are a woman, you are your niece's aunt; if you are a man, you are your niece's uncle. Your sister's son is your nephew.
the daughter's cousin
your second cousin
I think you mean "what do you call my father's sister's daughter?"She would be your 1st cousin and your fathers niece.___________________________________________________________Niece by definition is the daughter of one's brother, sister, brother-in-law, or sister-in-law. WhileCousin is by definition the son/daughter of your uncle or aunt.Accordingly, the daughter of the sister of your father is your cousinRefer to link below
You would call your sister's daughter your niece.
To your sister's daughter you are an aunt (or uncle) and she is your niece. To your niece's daughter ( your sister's granddaughter) you are a great-aunt (or great-uncle) and she is your grand-niece.
They are second cousins
Your brother or sister's daughter is called 'your niece.'
Evelyn had her fathers baby making the baby both sister and daughter
Your daughter's daughter is your grand daughter. Your nephew's daughter is the granddaughter of your sibling (your brother or sister) The grandchildren of siblings are second cousins.
Your sister's daughter is your niece.
No, because my father's sister (my aunt) does not have any sons, she only had daughters.