Hendrik van den Eynde

Hendrik van den Eynde (Latin: Henricus Affinus) (fl. 1517) was a Lier physician and a friend of Erasmus of Rotterdam. He was chief physician of Antwerp, and was involved with Erasmus in "dogged negotiations" about the exchange of silver cups for Erasmus' dedication in one of his books.

In May 1499, as Erasmus' stay in Paris was finishing, the Rotterdam humanist wrote a declamation in praise of medicine, which, in a letter to , he claims was originally written upon request from a man who had been personal physician

Erasmus wrote a letter to Van den Eynde in Louvain, dated 6 January 1518. Erasmus also wanted to dedicate a translation of the second book of grammar of Theodorus Gaza to him.

He is also referred to in Erasmus' letter to Pieter Gillis.