Mr Halldor Brynjar Halldorsson > LOGOS > Reykjavik, Iceland > Lawyer Profile


Work Department

Administrative and development law • Competition law • Corporate and commercial law • Dispute resolution and litigation • EU/EEA • Financial restructuring and insolvency • Mergers and acquisitions




Supreme Court Attorney Halldor Brynjar joined LOGOS in 2007 and became a Partner in 2019.


English • Danish


The Icelandic Bar Association


Halldor Brynjar graduated from the Reykjavik University with a mag.jur degree in 2009, Kings College in London with a Master’s degree in European Competition law in 2017, qualified as an Attorney in 2010 and a Supreme Court Attorney in 2017.

Lawyer Rankings

Iceland > Dispute resolution

(Leading individuals)

Halldór Brynjar HalldórssonLOGOS

LOGOS fields a team with expertise in all forms of litigation, with a strong record before courts of all levels, including the Supreme Court, the Court of Appeal, and the European Court of Human Rights. The group works as part of the firm’s full-service offering to provide comprehensive support, with areas of strength including contentious insolvencies, competition damages claims, construction damages claims, and corporate investigations. Team lead Heiðar Ásberg Atlason is a leading name for bankruptcy law, financial restructurings, and contract law. Other key team members include competition law specialists Halldór Brynjar Halldórsson and Helga Óttarsdóttir, as well as Supreme Court attorney Ólafur Eiríksson, whose practice covers white-collar crime, tort, and employment law.

Iceland > EEA and competition

(Leading individuals)

Halldór Brynjar Halldórsson – LOGOS

LOGOS fields a large team of highly experienced practitioners, praised by clients for their ‘unique insight into the field of competition law’. The group advises on negotiations with competition authorities, merger control work and state aid issues, while offering further expertise in EU and EEA mandates. Helga Óttarsdóttir co-leads the department alongside Gunnar Sturluson; Óttarsdóttir has significant experience acting for clients before national and international courts and competition authorities, while Sturluson is a key name for contentious mandates. Supreme Court attorney Halldór Brynjar Halldórsson is a seasoned litigator with expertise in competition and European law, and associate Vilhjalmur Herrera Thorisson assists clients with a broad range of regulatory and compliance work.