Acollar pin (closely related to thecollar bar andcollar clip) is a piece of men's jewelry, which holds the two ends of adress shirtcollar together and passes underneath theknot of anecktie. Functioning in a similar way as atabbed collar, it keeps the collar in place and lifts the knot to provide a more aesthetically pleasing arc to the necktie.

A collar pin is between three and five centimeters in length and is one of three kinds:

• a collar bar or barbell whose ends screw off and is designed to pass through specially madeeyelets in each side of the collar
• a pin, similar to asafety pin,^[1] that pierces each side of the collar (or passes through the existing eyelet)
• a bar with clips on both ends that grasp each side of the collar

The latter two styles do not require specially made collars, but collar bars are generally not worn with buttoned-down ("polo") collars and would be redundant with tabbed collars.Collar stays are not needed when using a collar bar. As a general matter, collar pins work best with straight, minimally spread collars; least, if at all, with spread collars; and not at all with widely spread collars such as the cutaway.

This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Collar pin" – news ·newspapers ·books ·scholar ·JSTOR(March 2023) (Learn how and when to remove this message)

• Media related toCollar pins at Wikimedia Commons

• Types of jewellery
• Textile closures
• Neckties
• Neckwear
• Fashion accessories

• Articles with short description
• Short description is different from Wikidata
• Articles needing additional references from March 2023
• All articles needing additional references
• Commons category link from Wikidata