Friedrich Georg Christoph Alefeld (21 October 1820 – 28 April 1872) was a botanist, author, and medical practitioner. Born in Weiterstadt-Gräfenhausen, Grand Duchy of Hesse, he described a number of plant species in his published works, taking a particular interest in legumes and malvaceae. He attempted to give a systematic treatment of German crops in one work, in addition to writing treatises on herbal baths and cultivated plants of potential usefulness. A number of his essays appeared in the botanical literature of the day.