Is Half Cousin a Thing?

Half cousins are descended from half siblings and would share one grandparent. The children of two half siblings are first half cousins.

What would a half cousin be?

A half-first cousin is a person with whom you share only one grandparent. Their parent is a half-sibling to one of your parents. If your grandmother or grandfather had a child with someone who was not your other grandparent, then the children of their offspring will be your half-first cousins.

Is there such a thing as half first cousin?

Cousins who share one grandparent because their parents are half siblings are half-first-cousins. Cousins who share a set of great-grandparents because their parents are first cousins and their grandparents are siblings are second cousins.