An image display apparatus is disclosed, which is small and has a wide view angle. The apparatus comprises an optical system which introduces light beams from first and second image display elements to first and second observation regions. The system has a plane-symmetric structure whose plane of symmetry is a plane passing between the first and second observation regions. The system introduces the light beam from the first image display element located in a first area with respect to the plane of symmetry to the first observation region via a reflection on a surface located in a second area after a reflection on a surface located in the first area, and introduces the light beam from the second image display element to the second observation region via a reflection on a surface located in the first area after a reflection on a surface located in the second area.