Dagur Benediktsson (born 17 June 1998) is an Icelandic cross-country skier.

[2] Dagur was born in Ísafjörður on the Icelandic National Day, 17 June.

His mother is the former Icelandic cross-country skier and footballer Stella Hjaltadóttir.

[4] In May 2017 Dagur graduated from Menntaskólinn á Ísafirði and moved to Östersund, Sweden to concentrate fully on skiing.

[3] Dagur's wife is the Icelandic alpine ski racer Hólmfríður Dóra Friðgeirsdóttir.