 The name presumably comes from the Old High German term "flins" respectively the Middle High German "vlins", meaning something like "pebble" or "hard stone".In 1385 the free imperial city Heilbronn bought the village from the "Lords of Sturmfeder".During the German Peasants' War many insurgent farmers of the region assembled in Flein around of their head Jäcklein Rohrbach.