A capacitor component includes a body including a first surface and a second surface opposing each other in a first direction, a third surface and a fourth surface connected to the first and second surfaces and opposing each other in a second direction, a fifth surface and a sixth surface connected to the first to fourth surfaces and opposing each other in a third direction, and including a first dielectric layer, and a first internal electrode and a second internal electrode disposed to oppose each other in the first direction with the first dielectric layer interposed therebetween, and a first side margin portion and a second side margin portion, respectively including a second dielectric layer, a first margin electrode, and a second margin electrode, disposed in parallel with the fifth and sixth surfaces of the body, and respectively disposed on the fifth and sixth surfaces of the body.