Daidarasaurus was a steel roller coaster located at Expoland in Suita, Osaka, Japan.

For reasons explained below, other sources (i.e. the Guinness Book of World Records) did not recognize Daidarasaurus's claim as longest roller coaster in the world from 1999 to 2000.

Daidarasaurus has now been demolished as Expoland is now permanently closed.

Daidarasaurus opened with the park in 1970, and consisted of 5 separate tracks.

These were a smaller, more family scale rollercoaster, 2 racing coasters, and 2 dueling coasters, the tallest out of all of them, as the other three shared the same lower height.