Humber Limited was a British manufacturer of bicycles, motorcycles, and cars incorporated and listed on the stock exchange in 1887. It took the name "Humber & Co Limited" because of the high reputation of the products of one of the constituent businesses that had belonged to Thomas Humber. A financial reconstruction in 1899 transferred its business to Humber Limited.

Thomas Humber was a English engineer and cycle manufacturer who developed and patented a safety bicycle (1884) with a diamond-shaped frame and wheels of similar size. It became a pattern for subsequent machines. Humber made many other improvements to bicycles. About 1868 he founded Humber Cycles, the bicycle manufacturing business at Beeston, Nottinghamshire later owned by Humber & Co Limited.