Spaghetti-Western.net concludes, "In parts fascinating, Keoma was the most ambitious and also the best of Castellari's SWs, which garnered a cult following up to today." DVD Talk says,
Set to a bizarre folk music soundtrack, Keoma tends to polarize western fans likely because it is anything but typical. Quite dark in tone and in narrative structure, the movie casts Nero as an unlikely antihero dressed more like a hippy than a cowboy. It's quite a violent film and it definitely delivers on the action but it's a movie that has as many critics as it does fans. And that's a shame, because it really is quite a very well made film.DVD Verdict says, "A clear cut above the usual film, Keoma ... has enough style, drama and intelligence to merit consideration by a wide audience and not just Spaghetti Western aficionados." The Spinning Image closes by saying, "Despite its sometimes slow pace, Keoma is a great film, recommended for fans of the genre. Strong imagery, a good story and unusual tone give it the edge on other westerns – if it was just a little faster, it could almost be a classic." Rotten Tomatoes doesn't have a critics score, but the audience rating is 73%.