yes, these can be used as surround/rear speakers. Their proportions mean they are designed to sit on the floor, but, if you have space to do that, they will likely sound as good or better than most "surround" speakers that are smaller and designed for wall or shelf placement....and these smaller speakers are often lacking in bass. With more and more bass being recorded in the surround channels of movies and TV shows, I say you can't go wrong with the largest speaker you can fit into the rear speaker location, provided it is of good quality. These are a steal for the price, and, require very little amp power for clean sound.