Donald Rudolf Laub Sr. (January 1, 1935 – April 26, 2024) was an American plastic surgeon and founder of Interplast, which led multidisciplinary teams on reconstructive surgery missions to developing countries.

Laub's experience operating on Antonio, a 13-year-old boy from Mexico who was born with cleft lip, prompted him to wish to help others from similarly underprivileged backgrounds through surgery.

[3] In 1969, Laub founded ReSurge International (formerly called Interplast), an organization devoted to plastic and reconstructive surgery in under-resourced areas.

[12] Laub’s further professional achievements include developing Q switched ruby laser tattoo removal[13] and the use of medical chemicals to reduce risk of skin cancer while improving cosmetic appearance.

[14] He and James B. Johnson developed the "alternate day calorie restriction diet," which they published in the controversial and non-peer reviewed journal Medical Hypotheses.