The NXT Cruiserweight Championship was a professional wrestling championship that was created and promoted by the American promotion WWE. Before its retirement, it was defended across the NXT, NXT UK, and 205 Live brand divisions, which were developmental territories for WWE. During its short tenure, it was the promotion's only championship with a weight limit, wherein only wrestlers 205 lb and under—designated as cruiserweights—could compete for the title.

NXT is a brand of the American professional wrestling promotion WWE that was introduced on February 23, 2010. Brands are divisions of WWE's roster where wrestlers are assigned to perform on a weekly basis when a brand extension is in effect. Wrestlers assigned to NXT primarily appear on the brand's weekly television program, NXT. It serves as a developmental brand for Raw and SmackDown, which are WWE's primary brands considered as the main roster. Due to its developmental status, NXT operates regardless if there is a brand extension in effect or not.