The invention provides a connector capable of reducing an amount of liquid remaining in a container when the liquid is drawn out therefrom in which the liquid is stored. A connector 1 that is disposed at containers 51 and 61 in which liquid is stored to draw out the liquid includes a connecting unit 5 having a threaded portion 17 that is screwed onto a container-side threaded portion 63 formed at the containers 51 and 61; a main body coupled so as to have a common a central axis with the connecting unit 5; and a siphon tube 9 that is secured to the main body 3 and that extends to a bottom portion of the containers 51 and 61. The connecting unit 5 and the main body 3 are connected so as to be capable of relatively rotating about the central axis.