There is one place named Knockastanna in Ireland.
All places in the world called "Knockastanna".
Milltown (15)
Newtown (12)
Grange (10)
Castletown (10)
New Bridge (9)
Cappagh (8)
Raheen (7)
Kill (7)
Kilmore (7)
Cashel (6)
Drinagh (6)
Johnstown (6)
Ballynamona (6)
Graigue (6)
Newcastle (6)
Whitechurch (6)
Churchtown (6)
Kilmurry (6)
Brockagh (6)
Esker (5)
Mullagh (5)
Ballynakill (5)
Rathmore (5)
Rossmore (5)
Ardagh (5)
Corbally (5)
Inch (5)
Knock (5)
Lecarrow (5)
Newbridge (5)