David H. Long (born 1961 in Liverpool) is an American and British businessman who was the CEO and chairman of Liberty Mutual Insurance Group until his retirement at the end of 2022.
In September 2014 the Obama administration announced its intention to appoint Long to be a member of the Advisory Committee for Trade Policy and Negotiations.
[4] Long started with Liberty Mutual in 1985 and has held positions in areas of underwriting and financial, mergers and acquisitions, international operations, and commercial markets during the thirty-three years he has been with the company.
[8] In 2012, Long famously spent $4.5 million to renovate his 1,335-square-foot office at the Liberty Mutual headquarters in Boston, Massachusetts.
In 2018, he hired a lawyer from Mintz, Levin, Cohn, Ferris, Glovsky, and Popeo to lobby state environmental officials to block the building of a dormitory for seasonal employees of the Miacomet Golf Course.