Waimakariri District Council ↔ Enshi
Sister city · China
NZ region Canterbury
Waimakariri District Council ↔ Zonnebeke
Sister city · Belgium
Timaru District Council ↔ Orange
Sister city · United States · since 1990
Timaru District Council ↔ Eniwa
Sister city · Japan · since 2008
Timaru District Council ↔ Weihai
Sister city · China · since 1999
Timaru District Council ↔ Orange
Sister city · Australia · since 1986
Selwyn District Council ↔ Coventry
Sister city · United States
Selwyn District Council ↔ Yubetsu
Friendly city · Japan · since 2000
Selwyn District Council ↔ Akitakata
Sister city · Japan · since 1992
Selwyn District Council ↔ Shandan
Sister city · China · since 2009