Abstract: Disclosed is a novel pre-tied necktie having an inner tie with one end formed as a flexible opening and zip fastener disposed therein, an outer tie containing a wide end of a conventional necktie, and a knot support with a hole near the lower end of the front wall. The upper end of the outer tie and the slider plate of the zip fastener are fixed in the hole of the knot support. When the knot is preset upon the support, the necktie can be donned with one hand. If necessary a M-shaped clamping device can be mounted on the support and thereby enhance its stability.