Julia Usher (born 1945) is an English musician, project animateur and composer, and is known for musical theater.
In 1980 Usher set up the composer-publishing firm Primavera with Welsh composer Enid Luff.
In the 1980s, Usher collaborated in a series of cross-arts projects with the sound sculptor and painter Derek Shiel.
In 1999 Usher moved to Colchester and since 2001 has concentrated on developing works within community arts projects in North Essex.
This led to a series of collaborations, notably A Celebration of Blake's Vision at St James's Church, Piccadilly, in 1987, and Soundpaint performances where Usher plays while Shiel paints; he recently splashed out in colour for eight hours in front of a live audience.