Þorvaldsdóttir is a surname of Icelandic origin, meaning daughter of Þorvald. In Icelandic names, the name is not strictly a surname, but a patronymic. The name refers to:
A surname, family name, or last name is the portion of a personal name that indicates a person's family. Depending on the culture, all members of a family unit may have identical surnames or there may be variations based on the cultural rules.
Icelanders are a North Germanic ethnic group and nation who are native to the island country of Iceland and speak Icelandic.
Icelandic names differ from most current Western family name systems by being patronymic or occasionally matronymic: they indicate the father of the child and not the historic family lineage. Iceland shares a common cultural heritage with the Scandinavian countries of Norway, Sweden, Denmark, and the Faroe Islands. Icelanders, however, unlike other Nordics, have continued to use their traditional name system, which was formerly used by all Nordic countries except partly Finland. The Icelandic system is thus not based on family names. Generally, a person's second name indicates the first name of their father (patronymic) or in some cases mother (matronymic). According to Icelandic naming tradition, second names end in -son or -dóttir with few exceptions.
Anna Sigríður Þorvaldsdóttir is an Icelandic composer and 2012 winner of the Nordic Council Music Prize. In 2015, she was chosen as the New York Philharmonic's Kravis Emerging Composer, an honor that includes a $50,000 cash prize and a commission to write a composition for the orchestra; she is the second recipient. The orchestra later performed the premiere of her symphonic poem Metacosmos under the conductor Esa-Pekka Salonen in April 2018.
Jóhanna Bergmann Þorvaldsdóttir is an Icelandic farmer responsible for saving the Icelandic goat through breeding them at her farm, Háafell in Borgarbyggð, Iceland.
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Icelandic Sign Language is the sign language of the deaf community in Iceland. It is based on Danish Sign Language; until 1910, deaf Icelandic people were sent to school in Denmark, but the languages have diverged since then. It is officially recognized by the state and regulated by a national committee.

The Sea,, is a 2002 Icelandic film, directed by Baltasar Kormákur. The film tells the story of a wealthy Icelandic family, owners of a fish industry company in a small Icelandic coastal town, and various family issues they have to deal with.
Ísleifur Gissurarson, an Icelandic clergyman, became the first bishop of Iceland, following the adoption of Christianity in 1000 AD.
Miss Iceland is a national beauty pageant in Iceland. This pageant is unrelated to Miss Universe Iceland contest.
Miss Universe 1959, the 8th Miss Universe pageant, was held on 24 July 1959 in Long Beach, California, United States. 34 contestants competed and in the end Akiko Kojima of Japan won the competition, becoming the first Asian woman to win the title. She was crowned by Luz Marina Zuluaga from Colombia. This was the last year that the pageant was held in Long Beach before it moved to Miami Beach, Florida in 1960, before the establishment of the Miss International pageant.
Niceland is a 2004 Icelandic drama directed by Friðrik Þór Friðriksson
The Icelandic goat, also known as the 'settlement goat', is an ancient breed of domestic goat believed to be of Norwegian origin and dating back to the settlement of Iceland over 1100 years ago. This breed of goat was on the verge of extinction during the late 19th century, but recovered prior to World War II, only to precipitously decline again. As of 2003, there were 348 goats in 48 flocks distributed throughout most parts of Iceland. At the end of 2012, the herd had increased to 849. Since this breed has been isolated for centuries, the Icelandic populations are highly inbred. The Icelandic goat is very rare outside its native land. Under its coarse, long guard hair, the Icelandic goat has a coat of high quality cashmere fiber. Icelandic goats are kept mainly as pets and their economic potential for meat, milk, cashmere and skin production remains to be explored. The Icelandic goat is currently of little economic value.

Stormland is a 2011 Icelandic comedy film directed by Marteinn Thorsson.
Cold Trail is a 2006 Icelandic film directed by Birni Brynjúlfi Björnssyni.
Cool Jazz and Coconuts is a 1985 Icelandic drama film directed by Jakob Frímann Magnússon. It was entered into the 14th Moscow International Film Festival.
Miss Universe Iceland is a national Beauty pageant that selects Iceland's representative to the Miss Universe pageant. This pageant is unrelated to Miss Iceland contest.
Berglind Björg Þorvaldsdóttir is an Icelandic footballer who plays as a forward for Breiðablik, Iceland, in the Úrvalsdeild.
The KR women's basketball team, commonly known as KR, is the women's basketball department of Knattspyrnufélag Reykjavíkur and is based in Reykjavík, Iceland. It is the second winningest team in Úrvalsdeild kvenna history with 14 Icelandic championships, the last coming in 2010. It currently plays in Úrvalsdeild kvenna and is coached by Benedikt Guðmundsson.
This article lists the squads for the 2018 Algarve Cup, held in Portugal.
Metacosmos is a symphonic poem by the Icelandic composer Anna S. Þorvaldsdóttir. The work was commissioned by the New York Philharmonic with support from the Marie-Josée Kravis Prize for New Music. It was first performed by the New York Philharmonic under the conductor Esa-Pekka Salonen on April 4, 2018.