Gabrielle Bloch (February 17, 1870 – July 14, 1961), known professionally as Gab Sorère, was a French art promoter, set designer, mechanical innovator, filmmaker and choreographer of the Belle Époque.
Collaborating with her partner, Loïe Fuller, to explore illusion through luminescence, she produced films and choreographies which moved performance from dancers being lighted to the abstract vision of lights dancing.
When Fuller died, Sorère inherited the dance troupe and laboratory of her partner and strove to keep her legacy as a visual effects artist alive.
She continued to produce innovative productions utilizing fluorescence and light into the 1950s.