Sir Arthur Harold Marshall KNZM FRSNZ FNZIA (15 September 1931 – 31 August 2024) was a New Zealand expert in acoustics design and research.

Marshall is recognised internationally for his contribution to concert hall design, in particular his seminal work with Mike Barron on the importance of lateral reflections.

He worked on several major concert hall projects including the Guangzhou Opera House with architect Zaha Hadid and the Philharmonie de Paris with French architect Jean Nouvel.

[4] He also held Fellowships in the Acoustical Society of America[5] and the New Zealand Institute of Architects.

[8] In the 2008 Queen's Birthday Honours, Marshall was appointed a Distinguished Companion of the New Zealand Order of Merit, for services to acoustical science.