Yi Je-ma (1837–1900) was a Korean medicine scholar in Late Joseon period.
He wrote a book Dongyi Suse Bowon: Longevity and Life Preservation in Eastern Medicine (동의수세보원; 東醫壽世保元) in 1894.
As his family was prominent in Hamhung, Yi was able to receive education of sinology, however it was impossible for him to overcome the restrictions of class.
But, he started his study for diseases as he often suffered from inveterate illness.
This Korean biographical article is a stub.