A tampon insertion device for inserting a tampon from a tampon applicator into a vaginal canal. The devices includes a hollow casing having an open distal end, a proximal end, a top wall extending between the proximal and distal ends, an open bottom opposing the top wall, and a clamp portion located at the distal end of the casing. The device further includes a plunger actuator located in the interior of the casing for linear movement therein, and a handle slidably positioned external to the casing and connected to the actuator such that linear sliding movement of the handle with respect to the casing causes a corresponding linear movement of the actuator within the casing. A method of inserting a tampon is also provided.