A data transmission apparatus includes a transmitting portion capable of transmitting data to an address set by a user's transmission operation, a counter portion for counting the number of past transmissions every address, a storing portion for storing a transmission history including the counted number of past transmissions in an updatable manner, a registering portion for automatically registering an address whose number of past transmissions has reached a prescribed number, a displaying portion for displaying an address setting screen, a discrimination portion for discriminating whether there is a transmission history to the automatically registered address as to the user who transmits, and a controlling portion for making the displaying portion display the automatically registered address in a selectable manner on the address setting screen of the displaying portion only when it is discriminated by the discrimination portion that there is the transmission history.