Big Dipper was a wooden roller coaster located at the defunct Geauga Lake amusement park in Bainbridge Township, Ohio. Originally opened in 1925 as Sky Rocket, it was renamed Clipper in the late 1940s, and eventually Big Dipper in 1969. It was the oldest operating roller coaster in Ohio and seventh-oldest in the United States when it closed in 2007. Designed by John A. Miller, the Big Dipper was also one of the last remaining roller coasters in the world from the designer. American Coaster Enthusiasts awarded the coaster its ACE Coaster Classic and ACE Coaster Landmark designations. Efforts to sell, preserve, and restore the ride were unsuccessful. The ride was demolished on October 17, 2016.

A wooden roller coaster is a type of roller coaster classified by its wooden track, which consists of running rails made of flat steel strips mounted on laminated wood. The support structure is also typically made of wood, but may also be made of steel lattice or truss, which has no bearing on a wooden coaster's classification. The type of wood often selected in the construction of wooden coasters worldwide is southern yellow pine, which grows abundantly in the southern United States, due to its density and adherence to different forms of pressure treatment.