Caspar Bartholin the Younger (auch Caspar Bartholin Secundus; * 10 September 1655 in Kopenhagen; † 11 June 1738) , was a Danish anatomist who first described the "Bartholin's gland" in the 17th century. Born in Copenhagen.
The discovery is sometimes mistakenly credited to his grandfather.
He came from an eminent family and started his medical studies in 1671 at the age of 16. In 1674, at the age of 19, the King appointed him as Professor of Philosophy. He described the glands that bear his name in 1677.