Joan Muriel Mattingley (married name Cameron; 5 March 1926 – 27 July 2015) was a New Zealand clinical chemist.
[3] When aged 17, she applied to work at the Department of Scientific and Industrial Research but was told that girls could not become botanists "because it required tramping".
[5][6] She worked as a clinical chemist, and rose to become the senior scientific officer in the biochemistry research unit at Wellington Hospital.
During her tenure, the NZAS made many submissions on government restructuring of the New Zealand science system.
Mattingley referred to these changes as "extraordinary upheavals" that would devastate New Zealand science and create a "generally confused, bewildered, insecure scientific community".