Muirgen O'Mahony

Muirgen O’Mahony is an Irish singer, performer, and vocal coach with over 10 years of teaching

experience. She holds a First Class Honours BA in Music from the Cork School of Music and a

Distinction Master’s Degree in Musical Theatre from the Royal Academy of Music, London.

After spending eight years living and working in London as both a performer and teacher within

the musical theatre industry, Muirgen returned home to Cork in 2024, where she now continues

her work as a performer, recording artist, and vocal educator, both privately and at third level

institutions such as the Cork School of Music.

Muirgen is currently a lead vocalist with the Grammy-nominated and six-time Billboard topping

group Celtic Woman, with whom she has toured internationally and recorded multiple albums

over the past five years. She has featured in several PBS television specials with the group,

including Celtic Woman’s 20th Anniversary special and North American tour in 2024. Alongside

this, she has performed as a soloist with renowned orchestras including the National Symphony

Orchestra (US), Atlanta Symphony Orchestra, Colorado Symphony Orchestra, and the RTÉ

Concert Orchestra.

Alongside her performance career, Muirgen is deeply passionate about teaching and vocal

development. She recently completed her Vocal Balance Accreditation, an experience she

describes as transformative both for her own singing and her teaching approach. Her teaching

focuses on simplifying and decluttering vocal technique, helping singers find freedom and

confidence in their voice while developing strong storytelling and artistic intention.

As an artist, Muirgen has also been exploring her own original music, writing and recording her

debut EP, Loinnir, released in May 2026 to critical acclaim and featured on the RTÉ Radio 1

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