Bundestag constituency 42
Bundestag constituency 42 means:
- Bundestag constituency of the City of Hanover II (2002 to 2005, since 2013)
 - Bundestag constituency of the City of Hannover I (2009)
 - Bundestag constituency Hameln-Pyrmont - Holzminden (1994 to 1998)
 - Bundestag constituency Hameln - Holzminden (1980 to 1990)
 - Bundestag constituency Holzminden (1965 to 1976)
 - Hanover-Land constituency (1949 to 1961)