She has won prizes for her creative prose, poetry, drama and theatre, and short-story writing at Oireachtas na Gaeilge and other Gaelic festivals.
Éilís Ní Dhuibhne reviewed her recent work under the writers' mentoring scheme organised by Clár na Leabhar Gaeilge in 2007.
[2] Five stories from the book ("Saineolaí Teicneolaí"; "Canary Wharf"; "Cosaint Sonraí"; "Cúrsa Eitilte"; "Mil") were prescribed on the Leaving Certificate Irish Syllabus.
Her work for younger readers includes Ailfí agus an Vaimpír (Cois Life 2012), which was shortlisted for Gradam Réics Carló (Irish Language Young People's Book of the Year) in 2012.
[4] The Arts Council has supported the work of Orna Ní Choileáin and she has been reviewed in The Irish Times[5][6] and Children's Books Ireland's Inis Magazine.