Sister Cities Overview

Members of Sister Cities program

A sister city is an official relationship between two cities that promotes peace through mutual respect, understanding, and cooperation - one individual, one community at a time. The Peace Commission has official responsibility for establishing and maintaining Cambridge’s sister city relationships, and Cambridge has established eighteen sister city relationships since 1982 — and most recently has established a relationship with the city of Les Cayes, Haiti. 

Sister city relationships create international awareness and understanding through cultural, educational, civic, and business exchanges with our international partner cities. A sister city relationship empowers individuals, organizations, educators, businesses, and municipal officials to act as citizen diplomats. 

Cambridge has seven official sister cities with active relationships:

  • Coimbra, Portugal: established June 1982
  • Gaeta, Italy: established December 1982
  • Tsukuba, Japan: established October 1983
  • San José Las Flores, Chalatenango, El Salvador: established March 1987
  • Yerevan, Armenia: established April 1987
  • Galway, Ireland: established March 1997
  • Les Cayes, Haiti: established May 2014

Cambridge has eleven additional official sister cities which are not currently active:

  • Dublin, Ireland: October 1983
  • Ischia, Italy: June 1984
  • Catania, Italy: February 1987
  • Kraków, Poland: October 1989
  • Florence, Italy: March 1992
  • Santo Domingo Oeste, Dominican Republic: May 2003
  • Southwark, London, England: June 2004
  • Yuseong District, Daejeon, Korea: February 2005
  • Cienfuegos, Cuba: established May 2005
  • Haidian District, Beijing, China: March 2005

The Cambridge-Haiti Sister City Committee

Cambridge has most recently developed a sister city relationship with Les Cayes, Haiti. The January 2010 earthquake that devastated Haiti had a very real impact on Cambridge, where many people from Haiti and of Haitian descent live and work. The Cambridge-Haiti Sister City Committee was established to develop and implement a strategy to build an assets-based, sustainable, long-term, sister city relationship between Cambridge and an appropriate city in Haiti. That Committee was appointed by the City Manager in January 2011 and began working with the Peace Commission on three areas of potential support and collaboration with a sister city in Haiti:

  • Public Health: short- and long-term support for public health initiatives, infrastructure and related ongoing efforts;
  • Education and Youth: support for local efforts in Haiti, through schools and the arts, including materials, sponsorships and exchanges; and
  • Infrastructure and the Environment: providing expertise and support to enhance and create public infrastructure and help reverse environmental degradation in and around the city and the surrounding area due to deforestation.

As of August 2020, the effort continues to support an official and sustainable relationship between the two cities.

Sister Cities International

Cambridge is a member of Sister Cities International. As the official organization which links jurisdictions from the United States with communities worldwide, Sister Cities International is an international membership organization that recognizes, registers, and coordinates sister city, county, state, and regional linkages. For more information, visit their website at

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