Cross-border town naming occurs where towns or villages with the same or equivalent names are divided between two different countries. This does not necessarily imply that those towns or villages are located in geographic proximity or that they are located near a current border (divided cities). Reasons for this taking place may include the following:
Most places are in Europe, but there are also some examples in North America and Asia. In Europe, until the first half of the 20th century and again since the Schengen Agreement in the late 20th century, such divisions could be mostly ignored by the inhabitants.
Note that this list includes only places with similar names that are in someway connected (by history, geography or otherwise) across modern-day international borders. Towns that have the same name but bear no relationship to each other are also very common but not particularly notable.
| Cross-border town | Countries | |
|---|---|---|
| Moyale and Moyale |  Ethiopia /  Kenya | |
| Mobaye and Mobayi-Mbongo |  Central African Republic / | |
| Cocobeach and Cogo |  Gabon /  Equatorial Guinea | |
| Loukolela and Lukolela | / | |
| Mulanje and Milange |  Malawi /  Mozambique | |
| Chirundu and Chirundu |  Zambia /  Zimbabwe | |
| Mukumbura and Mucumbara | Zimbabwe / Mozambique | |
| Tin Zaouatine and Tinzaouaten |  Algeria /  Mali |
| Cross-border town | Countries | |
|---|---|---|
| Astara and Astara |  Azerbaijan / | |
| Julfa and Julfa | ||
| Biləsuvar and Bileh Savar | ||
| Luohu District and Lowu |  China / | |
| Shatoujiao Subdistrict and Sha Tau Kok | ||
| Khorgas and Khorgas | China /  Kazakhstan | |
| Sarpi and Sarp |  Georgia /  Turkey | |
 Malaysia /  Thailand | ||
| Dibba /Al Buraimi-Al Ain |  Oman / | |
| Al-Mazyunah and Shahan District | Oman /  Yemen | |
| Ishkoshim and Ishkashim |  Tajikistan /  Afghanistan | |
| Sarahs and Sarakhs |  Turkmenistan / | |
| Kara-Suu and Qorasuv |  Uzbekistan /  Kyrgyzstan |
Towns and cities listed have names of a common origin across an international boundary; matching pairs across provincial or state boundaries (such as Kansas City or Lloydminster) are common but are not listed here.
| Cross-border town | Countries |
|---|---|
| Beebe Plain, Quebec and Beebe Plain, Vermont |  United States /  Canada |
| Niagara Falls, Ontario and Niagara Falls, New York | |
| Sault Ste. Marie, Ontario and Sault Ste. Marie, Michigan | |
| North Portal, Saskatchewan and Portal, North Dakota | |
| Madawaska County, New Brunswick and Madawaska, Maine | |
| Calexico, California and Mexicali, Baja California | United States /  Mexico |
| Tecate, California and Tecate, Baja California | |
| Naco, Arizona and Naco, Sonora | |
| Nogales, Arizona and Nogales, Sonora | |
| San Luis, Arizona and San Luis Río Colorado, Sonora | |
| El Paso, Texas and Ciudad Juárez, Chihuahua (formerly El Paso del Norte, 1852–1888) | |
| Boquillas, Texas and Boquillas del Carmen, Coahuila | |
| Laredo, Texas and Nuevo Laredo, Tamaulipas | |
| Progreso, Texas and Nuevo Progreso, Tamaulipas |
| Cross-border town | Countries |
|---|---|
| Antofagasta de la Sierra and Antofagasta | /  Chile |
| Coquimbito and Coquimbo | |
| San Sebastián | |
| Foz do Iguaçu and Puerto Iguazú | /  Argentina |
| Guajará-Mirim and Guayaramerín | / |
| Oiapoque and Saint-Georges-de-l'Oyapock | / |
| Chuí and Chuy | / |
| Acegua and Aceguá |
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