Grease distribution systems for lubricating a plurality of fracking valves on a wellhead include a distribution manifold configured for mounting on or adjacent to the wellhead, stand mount, mobile skid, grease skid or trailer. The distribution manifold includes a plurality of manifold valves configured for coupling in fluid communication with the fracking valves, respectively, on the wellhead. A grease pump is disposed in fluid communication with the distribution manifold. Methods of lubricating fracking valves on a wellhead are also disclosed.