A damper apparatus (1, 1A) comprising: a first rotating body configured to be able to rotate about a rotation center (Ax); a second rotating body configured to be able to rotate about the rotation center (Ax); a first elastic portion that is accommodated in an accommodation chamber formed by at least part of the first rotating body, is interposed between the first rotating body and the second rotating body, and is elastically deformed by relative rotation between the first rotating body and the second rotating body; a third rotating body configured to be able to rotate about the rotation center (Ax); a second elastic portion that is interposed between the second rotating body and the third rotating body, and is elastically deformed by relative rotation between the second rotating body and the third rotating body; and a dynamic vibration absorber configured to include a weight member and a third elastic portion that is interposed between the weight member and the second rotating body and is elastically deformed by relative rotation between the weight member and the second rotating body, in which the weight member and the third elastic portion are positioned outside of the accommodation chamber, and the weight member has a flat portion positioned further outside than the third elastic portion relative to the rotation center (Ax) in a radial direction, characterized in that the weight member further has a bent portion that extends outwards from the flat portion in the radial direction, and is bent inwards in the radial direction, the first rotating body is provided with a concave portion that is concave in an axial direction relative to the rotation center (Ax), and at least part of the bent portion of the weight member is positioned in the concave portion that is formed in an outer edge portion of the first rotating body. a first rotating body configured to be able to rotate about a rotation center (Ax); a second rotating body configured to be able to rotate about the rotation center (Ax); a first elastic portion that is accommodated in an accommodation chamber formed by at least part of the first rotating body, is interposed between the first rotating body and the second rotating body, and is elastically deformed by relative rotation between the first rotating body and the second rotating body; a third rotating body configured to be able to rotate about the rotation center (Ax); a second elastic portion that is interposed between the second rotating body and the third rotating body, and is elastically deformed by relative rotation between the second rotating body and the third rotating body; and a dynamic vibration absorber configured to include a weight member and a third elastic portion that is interposed between the weight member and the second rotating body and is elastically deformed by relative rotation between the weight member and the second rotating body, in which the weight member and the third elastic portion are positioned outside of the accommodation chamber, and the weight member has a flat portion positioned further outside than the third elastic portion relative to the rotation center (Ax) in a radial direction, characterized in that the weight member further has a bent portion that extends outwards from the flat portion in the radial direction, and is bent inwards in the radial direction, the first rotating body is provided with a concave portion that is concave in an axial direction relative to the rotation center (Ax), and at least part of the bent portion of the weight member is positioned in the concave portion that is formed in an outer edge portion of the first rotating body. a weight member and a third elastic portion that is interposed between the weight member and the second rotating body and is elastically deformed by relative rotation between the weight member and the second rotating body, in which the weight member and the third elastic portion are positioned outside of the accommodation chamber, and the weight member has a flat portion positioned further outside than the third elastic portion relative to the rotation center (Ax) in a radial direction, characterized in that the weight member further has a bent portion that extends outwards from the flat portion in the radial direction, and is bent inwards in the radial direction, the first rotating body is provided with a concave portion that is concave in an axial direction relative to the rotation center (Ax), and at least part of the bent portion of the weight member is positioned in the concave portion that is formed in an outer edge portion of the first rotating body.