Loudoun Castle is a developing theme park set around the ruins of Loudoun Castle in Galston in the Loudoun area, South-West Scotland.

The park opened in 1995 and has since been through the hands of showman Raymond Codona to its current owner, Henk Bembom.

Loudoun Castle features three roller coasters, "Rat" which is a Maurer Söhne Wild Mouse, "Wacky Worm" - a junior coaster by I.E. Park and perhaps the star attraction, a Schwarzkopf Silverarrow named "Twist N' Shout".

Also in the park are various other thrill rides including the "Loggers Leap" log flume, "Black Pearl" inverter ship, the "Captains Wheel" enterprise ride and "The Plough", the largest Chair-O-Planes ride in the world.

From the start, the parks mascot has been Rory the Lion.