Cognomen Ланкастер (Lancaster 
, Lankaster 
, Ланкастер 
) , in the entire world, is a common surname. The family name Ланкастер is habitual in Guernsey, where it is quite a common surname, Isle of Man, and Reunion (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in the United States, the United Kingdom, and Australia. Very seldom, Ланкастер is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lancaster | Canada, United Kingdom, United States, South Africa, Australia |
| Lankaster | Brazil, France, United States, Mexico, Venezuela |
| Ланкастер | Ukraine |