Ralphie the Buffalo is the name of the live mascot of the University of Colorado Buffaloes. Ralphie has been called one of the best live mascots in sports, and she is often erroneously labeled male.

The team of "Ralphie Handlers," who are varsity student-athletes, run Ralphie around Folsom Field, the University of Colorado's football field, in a horse shoe pattern before each half of each home game. It takes five Ralphie Handlers to run her around the field: two up front on each side to steer her around the field, two in the back on each side to help guide her, and one in far back to control her speed, called the "loop" position. Ralphie can reach speeds of 25 miles per hour (40 km/h). Female bison are used because they are smaller and less aggressive, as well as for insurance reasons, although Ralphie has knocked over her handlers on more than one occasion. Because of this, whether or not Ralphie runs is at the sole discretion of her handlers, and her run may be canceled if she is unusually nervous or upset.

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