Hamburger Flugzeugbau was a Hamburg-Finkenwerder based aircraft company established as a subsidiary of Blohm + Voss in July 1933 to build seaplanes.

Some of the models built at this time were:

• Ha137 - a dive bomber landplane
• Ha138C - a reconnaissance seaplane
• Ha139 - a transport seaplane
• Ha140 - a fighter/bomber seaplane.
• Ha222 - a six engine seaplane

The German air industry was suspended at the end of World War II. The company reemerged in 1956 as part of Flugzeugbau Nord and license built Nord Noratlas .

In 1961, Focke-Wulf, Weserflug and Hamburger Flugzeugbau joined forces in the Entwicklungsring Nord (ERNO) to develop rockets.

In the mid 1960's Hamburger Flugzeugbau worked on a design for a twin-jet HFB314 aimed at medium-haul market that the Caravelle was enjoying a success in. The design did not get off the drawing board with the company becoming involved in the production of the French-German Transall C-160 military transport. It also developed and built a private jet aircraft called the HFB320 which first flew in 1964.