Christchurch by-election may refer to
New Zealand 1856 Town of Christchurch by-election 1860 Town of Christchurch by-election 1860 Christchurch Country by-elections 1867 City of Christchurch by-election 1870 City of Christchurch by-election 1889 Christchurch North by-election 1891 City of Christchurch by-election 1896 City of Christchurch by-election 1901 City of Christchurch by-election 1911 Christchurch North by-election 1936 Christchurch mayoral by-election 1939 Christchurch South by-election 1943 Christchurch East by-election 1958 Christchurch mayoral by-election 1979 Christchurch Central by-election 2013 Christchurch East by-election
United Kingdom 1844 Christchurch by-election 1932 New Forest and Christchurch by-election 1952 Bournemouth East and Christchurch by-election 1993 Christchurch by-election