A drain strainer that is installed in the vertical drain pipe of a bathing water drain for a shower or tub, the drain strainer having an upper sieve receptacle in the form of a substantially cylindrical basket with openings for passage of water and smaller debris, and a lower bristle extension in the form of a depending stem with projecting bristles that ensnare hair shed from the bather, the drain strainer including a support structure to suspend the sieve receptacle and bristle extension within the drain pipe.