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Lorraine Griffin

Partner, Tax | Chairperson Deloitte Ireland

Lorraine is an international tax partner advising a broad range of indigenous Irish companies, private equity houses and multinational companies covering a wide variety of tax issues (both Irish and international). Lorraine is also the Irish Lead Client Service Partner for a number of Deloitte Ireland’s key client relationships.

Lorraine is the Chairperson and the Social Impact Partner for Deloitte Ireland. She is also a member of the Deloitte North and South Europe (NSE) Board. 

Lorraine is the former Managing Partner for the Tax & Legal business in Ireland (2015-2023), serving on the Executive Committee of the firm and the NSE Tax & Legal Executive during this time. She is former Chair of the American Chamber of Commerce Ireland Tax Policy Group, and a former Council member of the Irish Tax Institute.

Lorraine has been recognised, by International Tax Review, as one of the leading female tax advisors in Ireland, and EMEA Tax Leader of the Year 2022.