Streamline Moderne is a late Art Deco style branch which is mostly used for architectural design. Streamline or Modern in singular word is also used to signify the same design style. Streamline is mostly known with its curves, horizontal lines and nautical elements. It has reached its height pre WWII, in late 1930s. Streamline is also known for using electric light in design of architectural structure for the first time.

Streamline is mostly used in commercial buildings such as hotels, museums, airports, auditoriums etc. Examples of Streamline architectural design in residential buildings as houses, however, exist rarely. Other than architecture, Streamline design is also employed with a different variety of objects such as toast machines, airplanes, clocks, sewing machines and vacuum cleaners.