Abstract: A container holder configured to hold a container includes a holder body including a container receiver that contains the container and has an opening and a bottom surface, and a container-holding mechanism that stably holds the container contained in the container receiver. The container-holding mechanism includes a swing member that is swingable around a first support shaft relative to the holder body, a turning member that is turnable around a second support shaft relative to the swing member, and a first biasing member that biases the swing member. In a process of putting or taking the container in or out of the container receiver, an outer surface of the container abuts on a part of an outer surface of the swing member or the turning member, and the swing member swings around the first support shaft or the turning member turns around the second support shaft.