Abstract: A gas cooker is described which includes a gas hob having a number of gas burners 1 each having a hob tap 3 for controlling the supply of gas thereto, a lid 7 movable between an open position giving access to the burners and a closed position in which the lid covers the burners, and a gas control valve 10 controlling the supply of gas to the hob taps 3, the gas control valve 10 being operatively connected to the lid 7 whereby when the lid is closed the gas supply to the taps 3 is cut-off and when the lid is open the gas supply is restored, the gas control valve 10 being further provided with a pressure operated valve 16, 19 for preventing the restoration of the gas supply to the hob taps 3 on movement of the lid 7 to its open position unless all the hob taps are "OFF" (FIGS. 1 and 2).