Adolphus Marcus Hertzberg (11 June 1852 – 11 December 1917) was a businessman in Brisbane, Queensland, Australia.

Hertzberg emigrated from Prussia to Australia at age 14^[1] or 16,^[2] and remained in Queensland the rest of his life, in Roma for twenty years, and was naturalised as a British citizen in 1871. He was twice elected mayor of the town. He was employed by R. Lewin and Co., B. R. Lewin being an uncle,^[3] and after five years was made a partner in the firm.^[1]

He moved to Brisbane and with his brother Abraham Hertzberg founded A. M. Hertzberg and Co.

• He was a Government-appointed member of the Brisbane General Hospital committee
• He was a member of the Water Board and its successor, the Metropolitan Water and Sewerage Board from 1905 to 1916
• Hertzberg was appointed to he original Senate of the University of Queensland
• He was a member of the Queensland Rhodes Scholar selection committee
• He was an active member of the Queensland Chamber of Commerce, and its president 1903–1905 and 1909–1910. *He was an active Freemason and succeeded Lord Chelmsford as grand master of the Queensland constitution.^[1]

In 1883 Hertzberg married a daughter of Samuel Cohen, of Ulmarra, Clarence River and sister of J. J. Cohen in the New South Wales Administration. They had three children:

• Mrs. Roland Jacobs, of Adelaide
• Marcus Hertzberg, a Brisbane barrister
• Ralph Hertzberg

His last home was "Minmorah", New Farm, Queensland^[1]