To provide an input device making it difficult for persons around a customer under transaction to specify selected input keys from the position of the input keys pressed by the customer, and to provide an automatic teller machine.

The input device 3 formed with a plurality of input keys on the surface allows the input of information in the detached state from the automatic teller machine 1 and allows the input of information while turning in the mounted state to the automatic teller machine 1. The input device 3 has a spherical outline divided at the center part into an upper part and a lower part, and is formed with the plurality of input keys 18 respectively at the upper part and the lower part.