An image display apparatus, comprising: a light source; an image generation unit that modulates light emitted from the light source and generates the image light; and a projection optical system including a first lens system that has a positive refractive power as a whole and refracts the generated image light, a first reflection optical system having two or more reflection surfaces (Mr1, Mr2) that fold back and reflect the image light refracted by the first lens system, a second lens system that has a positive refractive power as a whole and refracts the image light reflected by the first reflection optical system, and a second reflection optical system having a concave reflection surface that reflects the image light refracted by the second lens system toward a projection object, wherein the first reflection optical system includes an optical component having a surface on which one reflection surface of the two or more reflection surfaces and a transmission surface are configured, the transmission surface allowing the image light to pass therethrough from another reflection surface of the two or more reflection surfaces to the second lens system, the transmission surface being configured in a region having a shape rotationally asymmetric to the reflection surface with respect to an optical axis of the optical component and including the optical axis. a light source; an image generation unit that modulates light emitted from the light source and generates the image light; and a projection optical system including a first lens system that has a positive refractive power as a whole and refracts the generated image light, a first reflection optical system having two or more reflection surfaces (Mr1, Mr2) that fold back and reflect the image light refracted by the first lens system, a second lens system that has a positive refractive power as a whole and refracts the image light reflected by the first reflection optical system, and a second reflection optical system having a concave reflection surface that reflects the image light refracted by the second lens system toward a projection object, wherein a first lens system that has a positive refractive power as a whole and refracts the generated image light, a first reflection optical system having two or more reflection surfaces (Mr1, Mr2) that fold back and reflect the image light refracted by the first lens system, a second lens system that has a positive refractive power as a whole and refracts the image light reflected by the first reflection optical system, and a second reflection optical system having a concave reflection surface that reflects the image light refracted by the second lens system toward a projection object, wherein the first reflection optical system includes an optical component having a surface on which one reflection surface of the two or more reflection surfaces and a transmission surface are configured, the transmission surface allowing the image light to pass therethrough from another reflection surface of the two or more reflection surfaces to the second lens system, the transmission surface being configured in a region having a shape rotationally asymmetric to the reflection surface with respect to an optical axis of the optical component and including the optical axis.