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Our Committee promotes cooperation, mutual understanding, and friendship between the citizens of Baltimore in Maryland, U.S.A. and Rotterdam in The Netherlands.

Rotterdam skyline with Erasmus Bridge and Kop van Zuid

Twin Cities

Baltimore and Rotterdam are both modern cities, because of historical events.  Rotterdam’s central city district was destroyed at the beginning of World War II.  Faced with the task of rebuilding the city, Rotterdam chose to embrace the future rather than to resurrect the past - becoming a showplace for modern architecture in Europe.  The city center of Baltimore was destroyed in 1904 by the Great Fire. So both cities were built from the ground up during the 20th century. 

Rotterdam and Baltimore have approximately the same geographical and population size. These two cities have in common a deep maritime history, large port operations in estuarine waters, and both are home to prestigious universities, medical schools, world-class museums and other cultural institutions, and burgeoning tech/startup scenes. They share many of the issues and opportunities common to many large, modern cities with diverse populations.

Baltimore Inner Harbor skyline


World map

Maryland Global Gala

December 6, 3:30-7pm

International networking event hosted by Baltimore’s World Trade Center Institute (WTCI). Stop by our Baltimore Sister Cities table at this event and sample treats from our sister cities!

Location: Columbus Center (IMET), 701 East Pratt Street, Baltimore, MD 21202

More information & registration

Kids participating in an Operation Trash event

Operation Trash educational activities

Theatre artist & educator Kathie diStefano from Rotterdam’s Avalanche Arts designs and coordinates creative educational activities for kids in Baltimore & Rotterdam to make them aware of trash pollution and how they can help solve it. Several workshops happened this fall and activities are currently being planned for next year.

More information on our HarborTraces website

Rotterdam vice mayor visits Baltimore

September 2017

About the visit (article on Sister Cities International website)

Rotterdam Vice Mayor and Baltimore Mayor shake hands.

Rotterdam Vice Mayor Langenberg & Baltimore Mayor Pugh. More photos on our Facebook page.

More Upcoming Events

See the Events Calendar