A guiding device (1) for fishing rod lines, which comprises a supporting body (2) for at least one guiding roller (5) which is mounted so that it can rotate with respect to the supporting body (2) about an axis of the roller (100), and two elements for fixing (3) to the shaft of a fishing rod, which are arranged substantially at right angles to the axis of the roller (100) on opposite sides with respect to the supporting body (2); the guiding device (1) comprises, furthermore, a kinematic connection device (10) between the supporting body (2) and at least one of the two elements for fixing (3), which is adapted to allow two degrees of freedom between the supporting body (2) and at least one of the elements for fixing (3).