About 91% of the population belongs to the state church, the Evangelical Lutheran Church, or other Lutheran Churches. However, Iceland has complete religious liberty, and about 20 other religious congregations are present.

Most Icelandic surnames are based on patronymy, or the adoption of the father's first given name. For example, Magnus and Anna, children of a man named Petur, would hold the surname Petursson and Petursdottir, respectively. Magnus' children, in turn, would inherit the surname Magnusson, while Anna's children would claim their father's first given name as their surname. Women normally maintain their original surnames after marriage. This system of surnames is required by law, except for the descendants of those who had acquired family names before 1913. Most Icelanders, while reserved by nature, rarely call each other by their surnames, and even phone directories are based on first names. Because of its small size and relative homogeneity, Iceland holds all the characteristics of a very close-knit society.

Unlike its literature, Iceland's fine arts did not flourish until the 19th century because the population was small and scattered. Iceland's most famous painters are Asgrimur Jonsson, Jon Stefansson, and Johannes Kjarval, all of whom worked during the first half of the 20th century. The best-known modern sculptor, Asmundur Sveinsson (1893-1982), drew his inspiration from Icelandic folklore and the Sagas for many of his works.

Kristjan Johannsson is most likely Iceland's most famous opera singer, while pop singer Bjork is probably its best-known artist internationally together with the progressive rock band Sigur Ros.