The oldest brother of the Jonas Brothers is Kevin Jonas
Joe Jonas is the oldest of the four brothers
Kevin is the oldest
sometimes i wonder why isn't nick Jonas the oldest he acts most mature .
Kevin Jonas Joe Jonas Nick Jonas Frankie Jonas
no kelvin Jonas is the eldest of all three brothers joe Jonas=19 and kelvin Jonas= 21
Well, when I was watching the hit TV series "Jonas", JOe supposedly said, "Welll we have Frankie, He's eight!" it was a new one that just came out. So I'm assuming, that yes, Frankie Jonas, Is eight years old. Hope this helped!
Yes. Kevin Jonas is the oldest, then Joe Jonas is the middle, and then Nick is the youngest.
Kevin Jonas
No, joe Jonas is only like 18 but his brother Kevin is like 20 so hes not the oldest one
No. Kevin Jonas is the oldest, Joe is in the middle, and Nick is the youngest.
Kevin Paul Jonas II. More commonly referred to as Kevin Jonas or his nickname, K2. The oldest is Kevin, who recently has been married. The second oldest is Joe, then Nick, then the youngest is Frankie.