It is commonly stated that law is an artifact, but this claim is rarely explicitly defended. This article submits this statement to closer examination. I argue that law is not straightforwardly covered by the standard philosophical account of artifacts, since not all laws have authors. However, it is possible to extend the account to include it. I then develop an analysis of law as an artifact kind. I contend that law is best regarded as a special type of artifact, which I call an ‘institutional artifact’. On this view, something qualifi es as law only if, roughly, it is collectively recognised as law and is constitutively capable of fulfi lling law’s function as an artifact. I argue that law’s function as an artifact is to serve as a deont...