Lucy Edith Gullett (28 September 1876 – 12 November 1949) was an Australian medical practitioner and philanthropist.

The sisters campaigned together for mental health reform, but Lucy's medical practice declined as she had less need for income.

During World War I she travelled to Europe[2] at her own expense to serve the Red Cross at a military hospital in Lyon.

From 1918 to 1932 she was an honorary outpatients physician with the Renwick Hospital for Infants, and she was a councillor of the Sydney District Nursing Association from 1934 to 1949.

[3] In 1921, Gullett founded the New South Wales Association of Registered Medical Women, serving as secretary.