Fedelia was an American automobile brand that operated briefly between 1913 and 1914. The company was established by the J.H. Sizelan Company, which was based in East Cleveland, Ohio.

The Fedelia was notable for its unique design as an acyclecar, characterized by a narrow track width of only 38 inches (964 mm) and a distinctive boat-tailed body. It was powered by a 1.1-liter De Luxe engine, which contributed to its lightweight and compact nature.

Despite its innovative design, the Fedelia brand had a short production run and ceased operations after just two years. The vehicles produced during this period remain a part of the early automotive history in the United States.