If you mean Ava Hughes from Diary of a Wimpy Kid (as Marley, Shelly's friend) and R.L. Stine's Haunting Hour, she is either 14-15 as of now (late September 2013).
Ava
Ava Telek goes by Ava Maria.
Ava Shamban goes by Dr. Ava Shamban.
Ava Lange's birth name is Jessica Ava Lange.
Ava June's birth name is Ava June Wiggins.
Ava Sambora's birth name is Ava Elizabeth Sambora.
The address of the Ava Art Guild is: Po Box 1463, Ava, MO 65608-1463
5' 4" (1.63 m)
Ava ava The city of AVA, are you working a crossword?
Who is Ava? And I would guess you would give Ava her lipstick...
Yes there is a St. Ava