The technical English terms for beekeeper are apiarist and apiculturist. Both words come from "apis," the Latin word for bee. Apis is also the name of the genus to which honey bees belong.
Apiarist is a word that dates from 1816 and is derived from the word "apiary," meaning beehive. Apiary dates from the 1650s, and beekeeping as an enterprise is even older, dating back to ancient Egypt. Both apiarist and apiculturist are terms mostly used for farmers who keep bees for commercial purposes, whether for their honey or to pollinate crops. However, apiarist is also used for scientists who study bees. Apiarist is the more commonly used term of the two.