Abstract: An animal restraint apparatus is attached to a horizontal surface and includes a guide unit which includes a carriage-retention channel. A carriage unit is received by the carriage-retention channel of the guide unit. The carriage unit includes a main body portion, a wheel assembly connected to a portion of the main body portion encompassed by the carriage-retention channel of the guide unit, and an animal connector connected to the main body portion. Attachment means connect the guide unit to the horizontal surface. The wheel assembly includes a pair of axles received by the main body portion of the carriage unit. Two pairs of wheels are connected to ends of the pair of axles. The carriage-retention channel of the guide unit includes a base portion. A pair of side walls project upward from the base portion. A pair of ridges project toward each other from top portions of the side walls. A pair of end walls are connected to longitudinal ends of the side walls and the base portion.