|Anthem: Zemia Rodnô|
|Largest cities||Gdynia, Sopot, Puck, Kościerzyna, Bytów, Kartuzy, Wejherowo|
|Time zone||UTC+1 (CET)|
|• Summer (DST)||UTC+2 (CEST)|
Kashubia or Cassubia (Kashubian: Kaszëbë, Kaszëbskô, Polish: Kaszuby, German: Kaschubei, Kaschubien) is a language area in the historic Eastern Pomerania (Pomerelia) region of northern Poland. It is defined by the widespread use of the Kashubian language.
Located west of Gdańsk (inclusive of all but the easternmost district) and the mouth of the Vistula river, it is inhabited by members of the Kashubian ethnic group. The region is home to the Kashubian Lake District. According to the 1999 basic study Geografia współczesnych Kaszub (Geography of present-day Kashubia) by the Gdańsk scholar Jan Mordawski 43 municipalities (gminas) of the Pomeranian Voivodeship have a Kashubian share of at least one third of the total population:
Although there are no legal regulations regarding the use of Kashubian symbols, the griffin, i.e. a mythical animal, derived from antiquity, is considered the emblem and symbol of the Kashubians. The Kashubian griffin is in black on a yellow background (optionally golden). The colors of the Kashubian flag are taken from the emblem - the upper color is black, and the lower one is yellow (golden). A Kashubian flag with a griffin in the center is also used. If there is an emblem on the flag, then the background is yellow.
Embroidery is an important part of Kashubian culture which uses seven colours; three shades of blue representing the sky, the lakes and Baltic Sea, green representing the meadows and forests, yellow representing the sun, red representing the peoples' love for the region, and the red representing the hard work of the Kashubians. Its origins date back to the early 13th century.
Kashubian cuisine is mostly based on fish and meat. Grain is also widely used within Kashubian dishes. Herring are the most widely used fish due to their high numbers in the region. Mushrooms are also a part of Kashubia's wide variety of dishes.
Kashubia has a wide variety of music; Zemia Rodnô is widely considered to be the anthem of Kashubia. The most recognised Kashubian song is Kaszëbsczé nótë, a traditional song that is the most recognisable part of Kashubian folklore. Dances are also a noticeable part of Kashubian culture, which are moderately energetic, except for a few. The most famous dance is the Kòséder.
According to Edwin Rozenkranz, the term "Kashubia" was introduced to Gdańsk Pomerania by Slavic displaced people from Western Pomerania (mainly knights), who had to give way to German colonists over time. The name stuck to these lands at the end of the Middle Ages, and it was popularized in the 16th century. Therefore, the Kashubian language is a Slavic language with some German influences with the status of an official language since 2005.
The population of the region, alike the majority of Poland, is predominantly Catholic. Important regional Catholic sites include the Wejherowo Calvary in Wejherowo, and the Church of the Assumption within the former Carthusian monastery in Kartuzy.