The Trust Board is the governing body of the Otago Museum, established under the Otago Museum Trust Board Act 1996.

The Act designates the role and responsibilities of the Trust Board, as well as how it is formed. The appointing bodies are the Dunedin City Council; the combined District Councils of Central Otago, Clutha and Waitaki; the University of Otago; the Association of Friends of the Otago Museum; the Otago Institute; and Manawhenua (the local Māori community).

Chair: Mr Graham Crombie
Deputy Chair: Mrs Kate Wilson

Professor Peter Dearden
Mrs Gaynor Finch
Associate Professor David Hutchinson
Mrs Julie Pearse
Mr Neville Peat
Mr Chris Staynes
Professor Paul Tapsell

Ex-officio
Treasurer/Accountant: Mr Mike Horne (Deloitte)
Deputy Treasurer/Accountant: Mrs Lisa Wilson (Deloitte)
Secretary: Otago Museum Director Dr Ian Griffin