Abstract: A stroller rocking device includes a hollow housing and a strap mount pivotally attached to an outer surface thereof. A strap is provided, having a fixed end and a free end. The fixed end of the strap is secured to the strap mount, and the strap is adapted for releasably securing the hollow housing to a handle of a baby stroller. A motor is housed within a central chamber of the hollow housing, and a weighted piston is slidably disposed within a longitudinally extending chamber of the hollow housing. The weighted piston is selectively driven to linearly oscillate within the longitudinally extending chamber by the motor. The linear oscillation of the weighted piston within the longitudinally extending chamber of the hollow housing imparts an oscillating rocking motion to the baby stroller, the rocking motion being selectable between horizontal motion and vertical motion relative to the handle of the stroller.