There is provided a detection device that detects a user operation, the detection device including an acquisition unit that acquires a start position indicating a position on an operation surface at which contact with the operation surface is started, the operation surface having user operation areas overlapped and arranged thereon, the user operation areas being a target of a user operation and detected according to the user operation, the user operation areas having at least one of an operation content and an operation target of the user operation different therein, and a decision unit that decides an operation corresponding to a user operation area that is the target of the user operation among the plurality of user operation areas which are overlapped and arranged, on the basis of the start position. The operation surface is provided on a part different from a display screen that displays content.