DOI: 10.26650/IstanbulJPharm.2019.404211Turkey is one of the richest countries in the world in terms of flora with its extraordinary plant diversity. Its flora consists of about 10,000 vascular plants and approximately one third of them (34.4 %) are endemic to the country. In recent years, the use of ethnobotanical information obtained from medicinal plant research has gained attention all around the world. For this reason, numerous ethnobotanical studies have recently been published and much has been written about medicinal plants in our country. This study deals with 133 taxa used in traditional treatments against diarrhea in Turkey and it aims to give information about scientific and local names of these taxa, families, used parts and usage in diarrhea.Cite this article as: Karahüseyin S, Sarı A (2019). Plants used in traditional treatment against diarrhea in Turkey. Istanbul J Pharm 49(1): 33-44.