Mary Ellen Bagnall-Oakeley (1833–1904) was an English antiquarian, author, and painter known for her work in Bristol and south-east Wales. She was a governor of the Haberdashers' Monmouth School for Girls.
- Occupation
- historian, painter
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- 1833
- Died
- May 26, 1904