To provide a wiper arm capable of making appearance performance excellent by suppressing the generation of wrinkles and distortion at a bent part set on an intermediate part.

Fold-back parts 12d, 12e formed into flat plate shapes by folding back side walls 12b, 12c are formed on the upper wall 12a side of the tip of a retainer 12 so as to fix an arm piece 13, and notches 12f, 12g as distortion absorbing parts for absorbing distortion generated on the folded-back side walls 12b, 12c at the formation of the bent part or at the formation of the fold-back part are formed on a portion set with the bent part A at the fold-back parts 12d, 12e.