Olive Muriel Pink (17 March 1884 – 6 July 1975) was an Australian botanical illustrator, anthropologist, gardener, and activist for Aboriginal rights who spent much of her life in Central Australia.

In May 1915, she joined the New South Wales Department of Public Works as a tracer, having attained a town planning diploma the previous year.

In 1926 she holidayed with well-known welfare worker and anthropologist Daisy Bates in remote Ooldea on the edge of the Nullarbor Plain, having her first encounter with Aboriginal culture.

[a] In 1930, Pink found herself retrenched from her government position and with her interest having been piqued by visits to the remote countryside, she travelled to Central Australia sketching desert flora.

[6] At this time TGH Strehlow damned her lack of professional qualifications and attempted to have her prevented from visiting Aboriginal reserved and missions, She also met Albert Namatjira during this period and purchased two of his early paintings.

During this early period of work Pink started agitating by writing letters to politicians and newspapers to raise the profile and awareness of difficulties faced by Aboriginal people; this practice would continue for the rest of her life.

During this period she heard reports of poor conditions in the Alice Springs Gaol and, after being refused an official visit, disrupted the court so that she was given a fine or 5 days in prison.

The following year the grant was gazetted as the Australian Arid Regions Flora Reserve, with assistance from the Minister for the Territories, Sir Paul Hasluck.

In the Northern Territory Newsletter obituary in 1975 he told the following story: At the Arid Zone reserve Miss Pink planted trees and, with the aid of her Aboriginal helper, watered them and tended them.

[10]Pink lived in the reserve, assisted by her long-time companion and gardener, Johnny Jambijimba Yannarilyi, until her death in Alice Springs at the age of 91.