"Sønner av Norge" (originally "Sønner af Norge", lit. '"Sons of Norway"') is the common title of the song "Norsk Nationalsang" (lit. '"Norwegian National Song"'), which was the de facto national anthem of Norway from 1820 until the early 20th century. From the mid-1860s, "Ja, vi elsker dette landet" gradually came to occupy the unofficial position as national anthem, but was used alongside "Sønner af Norge" until the early 20th century, with "Sønner af Norge" being preferred in official situations.

(Norwegian Lyrics / Tekst)
Sønner af Norges det ældgamle Rige,
Sjunger til Harpens den festlige Klang!
Mandigt og høitidsfuldt Tonen lad stige,
Fædrenelandet indvies vor Sang.

Fædreneminder herligt oprinder,
Hvergang vi nævne vor Fædrenestavn.
Svulmende Hjerter og glødende Kinder
Hylde det elskte, det hellige Navn!

(English Lyrics / Translation)
Sons of Norway, the ancient kingdom,
sing to the harps the festive sounds!
Manly and full of solemnity let the music rise,
Our song consecrates the ancestral land.

Memories of ancestors gloriously return,
each time we mention our ancestral roots.
Hearts swelling with pride and glowing cheeks
hail the beloved, the sacred name;

Norske Nasjonalsangen / Nasjonalsongen til Norge / Norges Nasjonalsang / Norsk Nasjonalsang / Norwegian National Anthem / Himno Nacional de Noruega / Hymne National de Norvège / Гимн Норвегии / Norwegischen Nationalhymne / Hymn Norwegii / Inno Norvegese / Volkslied van Noorwegen / Inno Nazionale della Norvegia / Norveška Himna / Himno Noruego / Nationalhymne Norwegen / Hino Nacional da Noruega / Hino Norueguês / Norská Hymna / Noorse Volkslied / Norges Nationalsång / Norske Nationalsang