Abstract: A split labyrinth seal comprises a stator and a rotor, each comprising a pair of halves. The rotor halves each comprise a hook and a further protrusion extending from the edge on one side of a central aperture and on the other side of the central aperture a recess in the edge for receiving the hook and the further protrusion. The hook and further protrusion and the recess to receive the same, each extend from adjacent the central aperture to the periphery of the half. The rotor halves are identical so that the hooks and protrusions of one half matingly engage the recess of the other half. The stator has a planar mounting wall and a peripheral wall extending axially to house the rotor therewithin. The edge of the stator on one side of the central aperture is recessed on the exterior side of the planar wall and on the other side of the central aperture is recessed on the interior side. The stator halves are identical at their edges, whereby the recessed edges overlap.