2021–22 Úrvalsdeild karla (basketball)

The participating teams first played a conventional round-robin schedule with every team playing each opponent once home and once away for a total of 22 games. The top eight teams qualified for the championship playoffs whilst the two last qualified were relegated to Division 1.^[3]

• On 8 June, Keflavík signed Jaka Brodnik who previously played for Tindastóll.^[11]
• On 13 June, it was reported that Þór Akureyri's guard Júlíus Orri Ágústsson would leave the team and play for Caldwell University.^[12]
• On 24 June, it was reported that Danero Thomas signed with newly promoted Breiðablik after playing with ÍR the previous two seasons.^[13]
• On 25 June, it was reported that Everage Richardson had signed with Breiðablik after one season with ÍR.^[14]
• On 25 June, it was reported that Iceland national team member Breki Gylfason had signed with ÍR after having played previously for Haukar.^[15]
• On 28 June, Iceland national team member Sigtryggur Arnar Björnsson signed with Tindastóll after playing in the LEB Oro the previous season.^[16]
• On 29 June, Tindastóll signed Ireland national team member Taiwo Badmus.^[17]
• On 30 June, Tindastóll signed former NBA G League player Javon Bess.^[18]
• On 12 July, Tindastóll signed Sweden national team member Thomas Massamba.^[19]
• On 13 July, Keflavík signed Iceland national team member Halldór Garðar Hermannsson from reigning national champions Þór Þorlákshöfn.^[20]
• On 15 July, Þór Þorlákshöfn announced it had signed Denmark national team member Daniel Mortensen and Lithuanian Ronaldas Rutkauskas.^[21]
• On 20 July, reigning Úrvalsdeild Foreign Player of the Year, Deane Williams, signed with LNB Pro B club Saint-Quentin after two seasons with Keflavík.^[22]
• On 4 August, Grindavík signed Spanish center Ivan Aurrecoechea who played the previous season with Þór Akureyri.^[23]
• On 8 August, Keflavík signed David Okeke who won the Georgian Superliga championship with BC Rustavi the previous season.^[24]
• On 9 August, Iceland national team member Ragnar Nathanaelsson signed with Stjarnan after spending the previous season with Haukar.^[25]
• On 14 August, former Argentina national team member Nicolás Richotti signed with Njarðvík.^[26]
• On 17 August, ÍR signed Shakir Smith.^[27]
• On 21 August, Njarðvík signed Former Liga ACB player Fotios Lampropoulos.^[28]
• On 24 August, Þór Akureyri signed Ireland national team member Jordan Blount.^[29]
• On 28 August, Valur signed Iceland national team member Kári Jónsson.^[30]
• On 3 September, Finnur Atli Magnússon signed with Haukar.^[31]
• On 11 September, Valur signed Callum Lawson who won the national championship with Þór Þorlákshöfn the previous season.^[32]
• On 2 October, Dagur Kár Jónsson left Grindavík and signed with Club Ourense Baloncesto of the LEB Plata.^[33]
• On 29 October, Grindavík signed E. C. Matthews.^[34]
• On 8 November, Þór Akureyri signed former Switzerland national team member Jeremy Landenbergue to replace injured Jordan Blount.^[35][36]
• On 9 November, Þór Akureyri signed Reggie Keely to replace injured Jonathan Lawton.^[35][36]
• On 11 November, Sigurður Þorsteinsson became the 11th player to grab 2,000 career rebounds in the Úrvalsdeild.^[37]
• On 17 November, ÍR signed Igor Marić.^[38]
• On 10 December, Keflavík star forward David Okeke suffered an achilles injury in a game against Tindastóll. Prior to the injury he had grabbed a season high 17 rebounds in the game.^[39]
• On 30 December, Tindastóll signed Zoran Vrkić to replace Thomas Massamba.^[40]
• On 2 January, it was reported that Breiðablik had signed Frank Aron Booker.^[41]
• On 14 January, it was reported that KR had signed Finland national team member Carl Lindbom.^[42]
• On 4 April, KR announced it had reached an agreement with Isaiah Manderson to release him from his contract just before the start of the playoffs.^[43]