The dramatic weight of Man From Del Rio rests securely on the broad shoulders of star Anthony Quinn. Cast as an indigent Mexican gunslinger, Quinn is asked by an old pal to clean up an outlaw-ridden western town. Knowing that his reputation is exaggerated, Quinn relies on braggadocio and bluff to keep the villains at bay. But when he is appointed town sheriff, it is "put up or shut up" time. Katy Jurado, who'd become "typed" as a western actress since High Noon, costars as Quinn's would-be lover. Man From Del Rio offers little that hasn't been seen before, but Anthony Quinn keeps things moving at a fast and exciting clip.
~ Hal Erickson, All Movie Guide