José Loayza Pedraza (born September 9, 1976, in Santa Cruz de la Sierra) is a Bolivian retired football defender.
Loayza has spent his entire career in the Liga de Fútbol Profesional Boliviano.
His former teams include Jorge Wilstermann, Blooming, Real Potosí, La Paz F.C., Oriente Petrolero, Real Mamoré, Nacional Potosi and finishing his career with Universitario de Sucre.
Between 1999 and 2003, Loayza made 5 appearances for the Bolivia national team.