| Margaret M'Avoy | |
| Birth Date: | 28 June 1800 |
| Birth Place: | Liverpool |
| Death Date: | 18 August 1820 |
| Death Place: | Liverpool |
| Nationality: | Kingdom of Great Britain |
Margaret M'Avoy (28 June 1800 – 18 August 1820) was a British impostor.
M'Avoy was born in Liverpool in 1800. She allegedly went blind and she became well known as she was said to be able to sense colours "through the medium of her fingers" despite her lack of sight.[1]
Her claims were investigated by the Liverpool historian William Roscoe at the request of Sir Joseph Banks. Roscoe concluded that her amazing abilities were due to the fact that she was not blind.[2]
M'Avoy died in Liverpool in 1820.[3]