The renewed religious activity which has been gathering national momentum over the past decade has deeply affected Mexican Americans and other Spanish speakers in the United States. For Catholics one may perhaps date the resurgence as commencing shortly after the Second Vatican Council of 1963; Protestant growth seems to have begun at approximately the same time, somewhat in parallel with the La Raza Movement. It is rewarding to analyze developments among the various denominations because of what is revealed about the diversity of Mexican American outlooks, because of the interesting leadership activities of church groups, and because of the musical trends which are appearing in worship.