The Darmstädter und Nationalbank, in shorthand Danat-Bank or Danatbank, was a large German joint-stock bank.

Both banks assumed a joint guarantee of capital and reserves of over 1 billion marks.

The merger was fully completed in 1922, resulting in one of the largest commercial banks in Germany.

[4]: 354  In the European banking crisis of 1931, however, Danat-Bank suffered a run which started around 17 June due to rumours of the insolvency of the Norddeutsche Wollkämmerei & Kammgarnspinnerei (North German Wool and Worsted Yarn Spinning Works), finally going bankrupt on 13 July 1931.

[citation needed] Well-known bankers of the Danatbank and its predecessors are (in alphabetical order):