no they don't have a sister but they do have a little brother called Frankie
Paul Kevin Jonas Sr.
The Jonas Brothers do not have a sister at all, but they do have a little brother born in 2000.
if you whats the Jonas brothers last name then it's like Nick jerry Jonas and paul Kevin Jonas and Joesph Adam Jonas der who didnt know that
Yes, Their younger brothers name is Frankie Jonas.
they have a best friend who is 12 that they treat like a sister but they don't have a real sister her name is Maya kibbel and the Jonas brothers treat her like family because her dad died when she was little
well there last name is Jonas and they are brothers
"Sons of Jonas", but Kevin came up with "Jonas Brothers".
The Jonas brothers last name is Jonas!
The Jonas Brothers
They got their name coz Their last name is Jonas and they are all brothers so put them together and you get : Jonas Brothers
Jonas is the last name of the Jonas Brothers, and it is their real last name.
oritse's sister is called naomi and his brothers are called Evan and temi.