Dekotora or Decotora, an abbreviation for "Decoration Truck", is a loudly decorated truck found often in Japan. Dekotora commonly have neon or ultraviolet lights, extravagant paints, and shiny stainless or golden exterior parts. These decorations can be found on both the cab and the trailer, and not only on the exterior but also in the interior. Dekotora may be created by workers out of their work trucks for fun, or they may be designed by hobbyists for special events. They are sometimes also referred to as Art Trucks. Note that Dekotora does not refer to vehicles used for advertisements, political campaigns or propaganda.

There is a large amount of variation in the designs and equipment used in Dekotora, much of it owing to the individual tastes of the owners or groups that use the trucks.

However, because the installation of these decorations can change the length, height and weight of the truck, for Dekotora used on highways for transportation and shipping these modifications have to pass inspection and be approved, and any departures from the regulations cleared.