In addition to the officially supported databases, there are backends provided by 3rd parties that allow you to use other databases with Django:
SAP SQL Anywhere
IBM DB2
Microsoft SQL Server
Firebird
ODBC
ADSDB
The Django versions and ORM features supported by these unofficial backends vary considerably. Queries regarding the specific capabilities of these unofficial backends, along with any support queries, should be directed to the support channels provided by each 3rd party project.