Year of Call: 1990

Year of Silk: 2006

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A master tactician and strategic thinker who is always on his game. The depth and breadth of his knowledge across a wide range of issues is second to none.”


Derek O’Sullivan QC’s practice concentrates on personal injury and he has significant experience in: catastrophic injury claims, employer’s liability claims, occupier’s liability claims, fatal accident claims and road traffic accidents. Derek is also regularly instructed in health and safety matters as well as property damage claims.

Derek was named ‘Personal Injury & Clinical Negligence Junior of the Year‘ at the Chambers Bar Awards 2012. In 2013, 2014, 2015 and 2016 he was a “Star Individual” in the Chambers Personal Injury ranking for Juniors. He took Silk in 2016 and is ranked as a Leading Personal Injury Silk in both Chambers and Partners 2018 and Legal 500 2018. He is also ranked a leading Silk in Health and Safety in the Legal 500 2017.

Professional memberships:

  • Personal Injury Bar Association

Qualifications & awards:

  • BA (Dunelm)