A filling needle for filling a container with a fluid, in particular a pharmaceutical or cosmetic fluid, having a housing that extends along a longitudinal axis and has an inlet opening and an outlet opening, having a core element arranged within the housing so as to be displaceable between an opening position and a closure position, having a plunger element coupled to the core element that closes and opens the outlet opening, and having an actuating arrangement for the displacement of the core element between the opening position and the closure position. The core element has at least one core magnet, wherein the actuating arrangement is arranged outside the housing and has at least one actuating magnet, and wherein core actuating magnets are arranged such that they interact with an attractive action and the core element and the actuating arrangement are displaceable jointly parallel to the longitudinal axis.