| Country: | DEU |
| Type: | A |
| Route: | 37 |
| Map Custom: | yes |
| Length Km: | 11 |
| States: | Lower Saxony |
| Previous Type: | A |
| Previous Route: | 36 |
| Next Type: | A |
| Next Route: | 38 |
is an autobahn in the Region Hannover, Germany. It consists of two parts, one connecting the borough of Hannover-Buchholz to Burgdorf via Altwarmbüchen, the other connecting the Hanover fairground to the A 7. The two parts are linked by the B 3, the whole system is known as the Messeschnellweg (fairground expressway).
During large fairs, for example CeBIT or Hannover Messe, the Messeschnellweg can be transformed to a four-lane one way road on the fly to allow for quicker travel to and from the fairground.
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