To obtain a float valve suitably preventing surging while having an inexpensive and simple structure and of controlling refrigerant circulation and a refrigerator including the float valve.

The float valve 6 includes a float member 10 having a float 20 floating on the liquid level of liquid stored within a liquid storage part 5 and a holding member 40 for holding the float member 10 so as to enable displacement. A valve port 50 having an opening 51 formed thereon is provided in the holding member 40, and a valve element 30 advancing/retracting to/from a position superposed on the opening 51 of the holding member 40 along with the displacement of the float 20 is provided in the float member 10. In the valve opening state, liquid is made to flow out. In the valve closing state, outflow of the liquid is suppressed, and gas retained within the liquid storage part 5 is made to flow out.