The direction display device includes: a wireless communication section to perform near field wireless communication; a barometric pressure measuring section; a converting section to convert barometric pressure into altitude; an orientation measuring section to measure an orientation of a specified direction; an operation section; a display section; a registration controlling section to obtain current positional information from an external positioning device on the basis of a registration instruction of the measured orientation to store the current positional information as registered positional information so as to be correlated to registered orientation information; a registration position extracting section to extract the registered positional information including an altitude value whose difference from the converted altitude is within a predetermined range; and a display controlling section to cause the display section to indicate a direction regarding the registered orientation correlated to the registered positional information.