An infrared shielding sheet includes a laminated film formed by alternately laminating a high refractive index resin layer containing fine particles and a low refractive index resin layer containing fine particles. At least one of the low refractive index resin layers has a value of 0.1 or more that is obtained by subtracting a refractive index at an arbitrary wavelength from 780 to 2500 nm from a refractive index at a wavelength of 550 nm. The low refractive index resin layer has a refractive index lower than a refractive index of the high refractive index resin layer at any wavelength in a range from 550 nm to the arbitrary wavelength inclusive.