A spinning reel basically includes a housing, an oscillating mechanism, a retaining member and a first bolt member. The oscillating mechanism includes a traverse camshaft that is disposed in inside of the housing and a slider that slides along the traverse camshaft. The retaining member is arranged at a rear side of the traverse camshaft to retain the traverse camshaft in the housing. The bolt member fixes the retaining member to the housing by being screwed into the housing. A part of the shaft portion of the first bolt member is arranged at a prescribed spacing from the slider in an orthogonal direction to a sliding direction of the slider while the slider slides to a rear end portion of the traverse camshaft.