What term describes my relationship?

Question:

What term describes my relationship?

What is the correctr term to describe the relationship between myself, and the children of my niece and nephew. I know it's some kind of "Uncle".

Best Answer - Chosen by Asker: Your title would be "GREAT UNCLE" since you are an uncle to your neice and your nephew. So that means that their kids are still under them and they [your neice and nephew] is still under you.

So that makes you a Great Uncle.

how amazing.