Lucy Armstrong (b. 1991) is a British composer based in London. She is a Fellow of Composition at the Guildhall School of Music and Drama. Lucy studied at the Royal Northern College of Music under Gary Carpenter and Adam Gorb, and then at the Guildhall  under Julian Philips, where she wrote an opera in association with the Royal Opera House.

Psappha Ensemble commissioned Lucy to write their first piece in honour of former patron, Sir Peter Maxwell Davies, and the resulting piece “The Executioner’s Pond” was premiered in March 2019.

In 2015 Lucy was commissioned by Bergen National Opera to write Nadja’s Song, a chamber opera premiered in Bergen. Nadja’s Song has since been performed at the Tête à Tête Opera Festival in London and at the Pontificia Universided Javerinana, Colombia.

Other recent commissions include Size Zero Opera, The Borealis Saxophone Quartet, The Piccadilly Symphony Orchestra, RNCM Engage, The Royal Central School of Speech and Drama, The Meon Valley Orchestra, John Miller’s “Brazmataz”, Gillian Blair, Blair/ Mertens Duo, Erin Royer and A4 Brass. In 2017 Lucy took part in Psappha’s “Composing For” young composers scheme.

She has conducted musicals and operettas and has worked as an orchestrator, arranger and copyist for musical theatre, TV and ballet.