Official language:
Icelandic

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• By law, Icelanders must follow the ancient tradition of deriving their last name from the first name of their father (patronymic system).
• Because they don't have surnames, it is not appropriate to call an Icelander by Mr. or Ms. Almost all Icelanders use the first name with everyone.
• If you go to a house and see a bunch of shoes by the door, then you should remove your shoes and leave them there.
• In Iceland, it is considered rude to give your host a gift when staying with them.
  
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• Evangelical Lutheran.
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• Iceland has a range of traditional foods, called "thorramatur", which are enjoyed especially in the period from January to March. These preserved foods include smoked and salted lamb, singed sheep heads, dried fish, smoked and pickled salmon, cured shark and various other delicacies.
• Breads include laufabrauð (deep-fried paper-thin bread), kleinur (similar to doughnuts) and rye pancakes.
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• Iceland is remarkable for the number of its volcanoes, craters, and thermal springs and for the frequency of its earthquakes. More than 100 volcanoes, including at least 25 that have erupted in historic times, are situated on the island.
• Reykjavik, the capital of Iceland, is the country's largest city and the world's most northerly capital.
  The traditional sport is Icelandic wrestling or glíma, a unique national sport with a history dating back to the days of settlement in the 9th century.
• Icelanders rank near the top of world nations in the per capita rate of connection to the Internet.
• Iceland has no army, navy, or air force. It does have a Coast Guard.
  
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