The name Allannah is a variant of Alannah, which itself is derived from the Gaelic or Celtic languages. It carries meanings such as 'rock' (al), 'noble' (ail), 'beautiful' (àlainn), or 'child' (leanbh). In Welsh, it can also mean 'melody' or 'harmony' (alawn). Additionally, in Hawaiian, Alana is a unisex name meaning 'awakening'. It is sometimes considered a variation of Helena, which comes from the Greek Ἑλένη (Helénē), meaning 'bright' or 'shining'.