Only if they have a kid of their own (or multiple kids).
He would be your cousin, or your father's nephew.
Your father's brother is your uncle; you are his niece (if you are a girl) or his nephew (if you are a boy).
His nephew .
It is correct if you are talking about more than one nephew. If only one nephew is involved, it is nephew's father. My nephew's father is my brother. I am talking about one specific nephew. If you mean to refer to the father of your nephews, then it would be nephews' father.
In the English language, your sister's son is your nephew, regardless of whether your sister is older or younger than you are. All children of your siblings are either your nephew (if a boy) or a your niece (if a girl).
If your sister had a son, then he is your nephew.
pick up the phone and call him.....hes ur nephew
Grandmother, if your Uncle is actually the brother of your mother or father.
The English language recognizes no family ties between your nephew and your father-in-law.
Your nephew's child is your great niece (if a girl) or your great nephew (if a boy).
The English language has no special name for a nephew's wife and does not consider you to be related to you. You would simply call her "my nephew's wife."
Your father's great nephew is the son of your father's niece or nephew. Your father's nieces and nephews are your first cousins. Their children are your father's great nieces and great nephews, and are your first cousins, once removed.