Concealed carry, or carrying a concealed weapon (CCW), is the practice of carrying a weapon (usually a sidearm such as a handgun), either in proximity to or on one's person or in public places in a manner that hides or conceals the weapon's presence from surrounding observers. In the United States, the opposite of concealed carry is called open carry.

While most law enforcement officers carry their handguns in a visible holster, some officers such as plainclothes detectives or undercover agents carry weapons in concealed holsters. In some countries and jurisdictions, civilians are legally required to obtain a concealed carry permit in order to possess and carry a firearm. In others, a CCW permit is only required if the firearm is not visible to the eye, such as carrying the weapon in one's purse, bag, trunk, etc.