Louis J. G. Gooren (14 December 1943 – 17 September 2023) was a Dutch endocrinologist known for his work with transsexual and transgender people.
He earned his medical degree from the Catholic University of Nijmegen in 1970, then specialized in internal medicine and endocrinology at the Vrije Universiteit in Amsterdam.
He earned his board certification in internal medicine and endocrinology in 1977 and completed his Ph.D. on testicular hormones in 1981.
Gooren was a professor emeritus at Vrije Universiteit from 2008, and he worked as a consultant in Chiang Mai, Thailand.
[4] He held an honorary professorship in male health at Hang Tuah University in Surabaya, Indonesia.