How many Robert Callahan are there?
18
18 people named Robert Callahan were found.
Where Robert Callahan looks like it comes from
- United States 92%
- England 3%
- Germany 2%
- Philippines 2%
- France 1%
Inferred from the first names it appears with, not from a register.
Robert
657,341 times · 318,815 Surnames distinct
Callahan
6,322 times · 1,490 First names distinct