Margaret Mary Hyland FRSNZ is a Canadian-born chemist based in New Zealand whose research focuses on aluminium technology, and the chemistry and engineering of material surfaces.

She moved to New Zealand in 1989 and after holding many senior academic leadership roles supporting and developing research at the faculty, university and national level became recognised as an authority on the generation and capture of fluoride emissions from aluminium smelters and for coordinating the team that produced the 'Fluoride Emissions Management Guide' for the aluminium industry.

In 2017, Hyland was seconded to the Ministry of Business, Innovation and Employment in the role of Chief Scientist and has held positions in a variety of other groups supporting the physical sciences and engineering.

[4] In her time at the University of Auckland, Hyland led a range of strategic postgraduate and research projects.

[8][9] Research for this guide directed by Hyland was acknowledged as having a "profound impact on how environmental mitigation measures and emission control systems are developed and applied to the primary aluminium industry.