Dr Brynjar Halldórsson is an Associate Professor of Clinical Psychology at Reykjavík University, Iceland. His research and clinical work focus on adult and child mental health, with particular expertise in anxiety disorders and obsessive–compulsive disorder. He is especially interested in the cognitive and behavioural mechanisms that sustain these conditions and in developing developmentally sensitive, evidence-based interventions. Dr Halldórsson collaborates extensively with international partners, including colleagues at the University of Oxford, to translate psychological science into effective clinical practice. He is leading efforts to adapt and implement the Online Support and Intervention (OSI) programme—an innovative, parent-led digital CBT intervention—within the Icelandic health system. This work aims to increase access to high-quality support for children experiencing anxiety problems and their families. Through his combined roles as researcher, clinician, and educator, Dr Halldórsson is committed to improving outcomes for children worldwide by advancing accessible, scalable, and developmentally appropriate approaches to mental health care.

 2014 University of Bath, UK, PhD.

2010 Institute of Psychiatry, King´s College London, UK, Pg. Dip. in CBT

2006 Háskóli Íslands, Cand. Psych. Psychology.

Previous Appointments

2019-2021 - Clinical Psychologist. Oxford Health Specialist Psychological Intervention Centre,

Warneford Hospital, Oxford Health NHS Foundation Trust, Oxford, UK

2019-2021 - Clinical Postdoctoral Research Fellow & Clinical Psychologist Departments of Experimental Psychology & Psychiatry, University of Oxford, UK

2015-2019 - Clinical Postdoctoral Research Fellow & Clinical Psychologist, Anxiety and Depression in Young People Research Unit (AnDY), School of Psychology & Clinical Language Sciences, University of Reading,

2012-2015 - Clinical Lecturer (part time).  Department of Psychology, University of Bath, UK

2013-2015 - Honorary Clinical Psychologist. Centre for Anxiety Disorders and Trauma South London and Maudsley NHS Foundation Trust, UK

2010-2011 - Honorary Clinical Psychologist Avon and Wiltshire Mental Health Trust, UK

2010-2011 Clinical Psychologist. Camden and Islington NHS Foundation Trust, UK

2009-2010 - CBT Therapist / High intensity trainee (IAPT project) Camden and Islington NHS Foundation Trust, UK

2006-2009 - Clinical Psychologist Department of Psychiatry Landspitali, University Hospital of Iceland, Iceland