A keyboard device includes: a frame; a plurality of keys including a first key and a second key, the plurality of keys rotating around the frame; and a plurality of guides for restricting an operation of each of the plurality of keys, at positions different in a vertical direction, each of the plurality of guides including a first member that is softer than the frame and the plurality of keys, and a second member that is harder than the first member, wherein each of the plurality of guides is in a first state where a corresponding one of the keys comes into contact with the first member, or in a second state where the corresponding one of the keys comes into contact with the second member.