Shanweiniao is a genus of long-snouted enantiornithean birds from Early Cretaceous China. One species is known, Shanweiniao cooperorum. There is one known fossil, a slab and counterslab. The fossil is in the collection of the , and has accession number DNHM D1878/1 and DNHM1878/2. It was collected from the Lower Cretaceous , middle Yixian Formation, from Lingyuan in the Liaoning Province, China. O'Connor et al. (2010) found that Shanweiniao is a close relative of Longipteryx, Longirostravis, and Rapaxavis, which together form a clade of long-beaked enantiornithean birds, the Longipterygidae.