Last name Сван (Swan 
, Svan 
, Swahn 
) , around the world, is a common family name. The cognomen Сван is characteristic of Guernsey, where it is quite a common surname, British Virgin Islands, and Bermuda (explore the name in all countries). Measured by absolute frequency, this name is the most popular in the United States, Myanmar, and the United Kingdom. Also, Сван is the forename as well as the last name.