A fishing reel includes a reel unit, a handle shaft, a handle arm, a handle knob, a nut and an anti-loosening member. The handle shaft includes an anti-loosening engaging portion. The handle arm includes an elongated hole. The handle shaft is inserted in the elongated to be non-rotatably engaged with the handle arm. A position of the shaft in the elongated hole is adjustable. The anti-loosening member is configured on the nut member and is selectively set in a first position and a second position. The anti-loosening member is engaged with the anti-loosening engaging portion in the first position to prevent the nut member from loosening, and is disengaged from the anti-loosening engaging portion in the second position to allow the nut member to rotate in the loosening direction.
