(Mary) Dorothea Heron (19 August 1896 – 9 October 1960), was the first woman to be admitted to the Roll of Solicitors in Ireland.

[1] Mary Dorothea Heron was born in County Dublin on 19 August 1896.

[2] Her father, James Heron, was the county surveyor and her mother was a university graduate.

[3][4] Heron attended Victoria College and graduated from Queen's University Belfast with a bachelor of Arts in classics followed by law (B.A., LLB).

In January 1923 Heron came second in her Final Examination and joined the roll of solicitors on the 17 April 1923.