What does Rory mean?
Anglicized form of Irish 'Ruaidhri', from 'ruadh' ('red') + 'ri' ('king') — 'red king'. Borne by Ruaidhri Ua Conchobair, the last High King of Ireland. Now also used for girls.
What does Rowan mean?
Rowan has two roots that meet in the name: the Irish Ruadhán, “little red one,” and the English name of the rowan tree with its red berries.