Provided are near-infrared absorbing particles containing cesium tungstate, wherein: the cesium tungstate has the crystal structure of a pseudohexagonal crystal converted to at least one selected from an orthorhombic crystal, a rhombohedral crystal, and a cubic crystal; and the cesium tungstate is represented by general formula CsxWyOz and has a composition within the region surrounded by the four straight lines of x=0.6y, z=2.5y, y=5x, and Cs2O:WO3=m:n (where m and n are integers) in a three-dimensional composition diagram with Cs, W, and O as vertices.
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