黑色领结（英语：Black Tie），是一个西方社会的着装守则，源于19世纪英美服装公约（Anglo-American costume conventions）的夜间活动和社交功能的着装要求。通常于下午6时以后穿着，黑色领结比白色领结被较不正式，但比商务服装拘谨。

男士通常穿着黑色或午夜蓝的孖襟羊毛西装（无尾礼服），配上有法式袖口的白色衬衫及袖扣、黑色领结和黑色皮鞋。女士则需要穿着长至脚踝或及膝的晚礼服，配衬高跟鞋及首饰。

Black tie is a dress code of formal wear for evening events and social functions derived from British and American costume conventions of the 19th century. Worn only for events after 6 p.m., black tie is semi-formal, i.e. less formal than white tie but more formal than informal or business dress. In the United States, black tie attire is often referred to as a tuxedo.