The XXXG-00W0 Wing Gundam Zero (aka Wing Zero) is a mobile suit featured in the anime Mobile Suit Gundam Wing and its sequel OVA/movie Endless Waltz. Though it was originally piloted by Quatre Raberba Winner, and had several more pilots during its existence, the Gundam was most famously piloted by Heero Yuy (the series' main protagonist).

Technology & Combat Characteristics
Wing Gundam Zero (TV Version) Wing Zero was designed by the five Gundam Scientists fifteen years prior to the events of the Eve Wars. It is the ancestor of the five Operation Meteor Gundams (Wing, Deathscythe, Heavyarms, Sandrock and Shenlong). Designed with "Perfect Victory" in mind, it boasts exceptional abilities and is one of the two suits which utilize the ZERO System (the other being the Gundam Epyon), but because of this dangerous mental interface, it was ultimately never constructed by the scientists. The plans remained hidden away until Quatre desperately built it to carry out his revenge following his father's death. Unlike the Gundams constructed based on its design, Wing Zero was built to be capable of both ground and space combat from the beginning. Like the Wing Gundam, it can transform into a high-speed flight mode dubbed "Neo-Bird Mode."