• Uppsala universitet, jur kand, 1993
  • K.U. Leuven, Belgien 1992-1993

Övriga meriter

  • Expert i regeringens utredning om Utökad beslutanderätt för Konkurrensverket (Kommittédirektiv 2015:48)



GCR - Private Litigation Guide - Sweden Global Competition Review 13 januari 2020
Merger Control 2016 – Sweden chapter Chambers Global Practice Guides 13 april 2016
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Konkurrensrätt – en handbok, 5 upplagan Karnov Group 10 september 2014
Konkurrensrätt - en kommentar, 4 upplagan Thomson Reuters Professional 2009 1 januari 2009
Competition Cases from the European Union Thomson och Sweet & Maxwell, 2008, s.1193 -1219 1 januari 2008
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‘The detailed knowledge of our industry is a huge reason for why we choose to work with Johan Karlsson, who also genuinely seems interested to understand our industry. Johan is also appreciated for not always “seeing the worst” in his legal interpretations but adapting a modern way of applying the legislation. Together with Trine Osen Bergqvist they have become an outstanding team on which advice you can firmly rely on.’

‘Johan Karlsson is a very skilled competition lawyer. Teaming up with Jakob Jeanrond, who complements him well, makes them a very sharp team.’ - Legal 500 2021


Johan Karlsson is commended by sources for his

"experience in high-level cases" and "good standing in the market."

He is particularly adept at navigating complex behavioural issues and investigations before Swedish and European competition authorities. Chambers & Partners 2021

Johan Karlsson earns acclaim as a “main competitor” among peers who regard him as

“one of the best in Sweden”

for contentious competition proceedings. Thought Leader i WhosWhoLegal (2021)

Johan Karlsson provides us with world-class advice tailored to our industry. He is always available and able to describe complex competition law issues in a simple way for clients. He is highly appreciated and respected throughout the company. - Legal 500 2020

Johan Karlsson receives strong praise from clients, who describe him as a "really excellent lawyer; he knows our business very well so it's very easy to get precise, on-point advice." His well-regarded competition practice encompasses merger clearance, dawn raids and cartel disputes, including damages proceedings. - Chambers & Partners 2020

Johan Karlsson  has over two decades' experience advising on the full spectrum of competition law mandates, advising on a broad range of disputes and investigations, including dawn raids. A client describes him as a "senior lawyer with high competence and market insight."  - Chambers & Partners 2019

Sources regularly name Johan Karlsson as amongst the leading competition lawyers in Sweden - Chambers & Partners 2018

Johan Karlsson is hailed as “one of the best competition lawyers in Sweden; he always delivers and is a good discussion partner.” He is well versed in handling both contentious and non-contentious issues. - Chambers & Partners 2017

Clients describe Johan Karlsson as "one of the best in Sweden, if not the best, for competition law." He has recently acted on a number of leading merger cases, as well as representing clients in antitrust litigation. - Chambers & Partners 2016

Practice head Johan Karlsson remains highly valued by all commentators for his significant competition law expertise, and for "his ability to make very mature judgements on how to proceed." - Chambers & Partners 2015

Johan Karlsson is appreciated by clients and recognised by peers for his exceptionally high-quality work. One client commented: “He has a solid legal knowledge and high integrity; you can always trust his advice.” - Chambers & Partners 2014

Johan Karlsson comes highly recommended for his competition law knowledge as well as his responsiveness and business-oriented approach. An impressed client reports: "He saved the day on a crucial case" - Chambers & Partners 2013 

"Speedy and extremely competent” - Legal 500, 2012

Johan Karlsson is a leading figure in the Stockholm office and is described as “very talented; right to the point with his advice.” - Chambers & Partners 2011

“Excellent, knowledgeable’ antitrust expert” - Legal 500, 2011