Mount Crosby pumping station is a heritage-listed pumping station and weir (the Mount Crosby Weir) at Stumers Road, Mount Crosby, City of Brisbane, Queensland, Australia. It is located on the Brisbane River and extends into Chuwar on the other side of the river. The facility supplies water to Brisbane and nearby cities and towns within the SEQ Water Grid. It was originally designed by Charles H McLay and built from 1891 to 1892. The historic parts of the facility were added to the Queensland Heritage Register on 25 October 2019. It is also listed on the Brisbane Heritage Register, together with numerous associated facilities which were not included in the state heritage listing.