What do you call person who lives in Guam?

Answer 1

If they're native to the island they're called Chamorro, however if they're immigrants they're just Guamanians.

I asked my sister in law, shes a Guam native.

Or you can also call them, Guamibears : )

Answer 2

Living/residing on Guam: GUAMANIAN

Native people of Guam: CHAMORRO

Answer 3

A resident of Guam, an unincorporated territory of the United States in the western Pacific Ocean, is called a Guamanian.