Jeffrey Karp (born 1975)[1] is a Canadian biomedical engineer working as a Professor of Medicine at Harvard Medical School, Brigham and Women's Hospital, and the principal faculty at the Harvard Stem Cell Institute and Affiliate Faculty at the Massachusetts Institute of Technology through the Harvard–MIT Division of Health Sciences and Technology.

[6] In 2007 he received an appointment and his own lab at Brigham and Women’s Hospital, at a location near MIT; he retained his association with the Harvard–MIT HST program.

[7] In 2014 the company Skintifique was formed to commercialize a barrier cream Karp had invented to prevent skin reactions in people with nickel allergy.

[10] In 2015 the company Frequency Therapeutics was founded to create treatments for hearing loss based on work done by Langer and Karp inspired by the ability of some amphibians and birds to regrow hair cells that have been damaged.

[13] Karp received the 2011 Young Investigator award from the Society for Biomaterials,[14] and also in 2011, the Boston Business Journal profiled him as a Champion in Health Care Innovation.