Career
She began her career at Abbey Theatre in Dublin, Ireland. Áine is a fluent Irish language speaker. She appeared in 1987 film, The Lonely Passion of Judith Hearne based on the novel by Brian Moore.
In 1989 she played Masie Madigan in the London National Theatre production of Juno and the Paycock.
She played Lily in the Irish Soap Opera Fair City on RTÉ One. She appeared in 53 episodes from 1996-2001.
In 2012 Áine appeared in Pan Pan Theatre Company’s production of Ibsen’s A Doll House at Smock Alley Theatre. She played Mistress Taylor in several of the Jack Taylor (television series), an Irish television drama based on a series of novels by Ken Bruen including "The Magdalen Martyrs" (2011) and "The Dramatist" (2013).
Aine Ni Mhuiri is scheduled to play in Embers, a theatricalized presentation of a radio play by Samuel Beckett, staged by the Pan Pan Theatre Company at the Brooklyn Academy of Music in September 2015.