Abstract: A hair washing basin or bowl for hairdressers or the like is provided with a recess for the nape of the neck on the edge of the basin or bowl as well as with an opening at the deepest location of the basin or bowl for evacuating the washing and rinsing water. The inside of the basin is provided with an obstacle limiting the water flow path inside the basin which leads to the evacuation opening, forming a wall and imparting a circular motion to the flowing water. Owing to said elements, long hairs will remain in the limited flow path and will be continuously and throughout their length immersed in the washing and rinsing water without the risk for the hair ends of entering the evacuation opening.