Mary Bellamy (b. 1971) studied with Anthony Powers at Cardiff University, Simon Bainbridge at the Guildhall School of Music and Drama, London and George Nicholson at the University of Sheffield.

Her pieces have been performed at Huddersfield Contemporary Music Festival, Hoxton New Music Days, State of the Nation and the South Bank's Inventions Days, as well as at many individual concerts, and by leading contemporary music ensembles the London Sinfonietta, The Birmingham Contemporary Music Group, the Composers Ensemble and Ensemble Exposé. Her music has been broadcast on BBC Radio 3 and has also received performances outside the UK, at Musikmonat in Switzerland and Pianissimo in Bulgaria.

Commissions include those from the London Sinfonietta, the Composers Ensemble, Stephen Gutman and Suono Mobile. Constellations (1999), commissioned and recorded by the Composers Ensemble, is recorded on NMC’s The Hoxton Thirteen.

In 2004 Mary received an Arts Council International Fellowship Award to attend a residency programme at the Pistoletto Foundation in Italy . This led to ongoing collaborative work with Glasgow based video artist t s Beall. Two of their works were screened as part of ION's alla Soglia del Corto Competition in conjunction with the 2006 Venice Film Festival, and their first solo exhibition – a multi-channel video and sound installation, Light Blind – was shown at Brooklyn Fireproof Gallery, New York, also in 2006. In 2007 a further solo exhibition took place at Castlefield Gallery in Manchester and included their most recent installation Untitled Horses.