Iris module and camera module including the same

A camera module comprising:

• a housing having an internal space;
• a lens barrel accommodated in the internal space of the housing and including a plurality of lenses;
• and
• an iris module disposed adjacent to the lens barrel and configured to adjust a size of an incident hole,
• wherein the iris module comprises:
• an iris main body comprising a base and a holder guide portion protruding from a side surface of the base with a thickness in a direction perpendicular to an optical axis direction;
• a magnet holder seated on the holder guide portion and comprising an iris magnet, and
• a magnet holder coupling portion configured to reduce an impact by coupling the magnet holder to the holder guide portion,
• wherein the magnet holder coupling portion comprises a protrusion protruding from a side surface of the magnet holder and a fastening portion formed at the holder guide portion and fastened to the protrusion.