Sister Mary Gabriel MBE (21 June 1904 – 29 February 1988), whose birth name was Muriel Marie Barron, was a New Zealand religious sister and pharmacist.
[1] She joined the Sisters of Mercy in 1929 in Auckland and having previously studied music teaching.
[2][3] She took her religious vows three years later, taking the name Sister Mary Gabriel.
During that time she was a foundation member of the New Zealand Hospital Pharmacists' Association and of Auckland branch of the Pharmaceutical Society.
She was one of the first New Zealand pharmacists to be made a Fellow of the Pharmaceutical Society and the first New Zealand woman to be made a Fellow of the Pharmaceutical Society.