The most popular sport in Iceland is soccer.
International soccer rules are the same everywhere.
People from Iceland are Icelandic, so you would call them Icelanders.
A person from Iceland is called an Icelander. If a person is from Iceland they are Icelandic.
Albert Gudmundsson made soccer the first sport in iceland.
People in England call soccer 'Football'.
Only Americans call soccer...soccer! (everywhere else it is known as football)
Some of the Main Sports are Handball, which Iceland is top ranked in the world. One of the other ones is football (soccer).
Italians call soccer calcio