A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises a lower layer including at least one of a TiC layer, a TiN layer, a TiCN layer, a TiCNO layer, a TiB 2 layer or a TiCO layer, an intermediate layer including an α-type Al 2 O 3 layer containing α-type Al 2 O 3, and an upper layer including a TiCN layer containing TiCN; the respective layers are laminated in this order from the substrate side toward a surface side of the coating layer; an average thickness of the coating layer is from 5.0 μm or more to 30.0 μm or less, an average thickness of the lower layer is from 3.0 μm or more to 15.0 μm or less, an average thickness of the intermediate layer is from 3.0 μm or more to 15.0 μm or less, and an average thickness of the upper layer is from 1.0 μm or more to 6.0 μm or less; as to a cross-sectional surface which is located within 1 μm below a surface of the intermediate layer toward the substrate and is parallel to the surface of the substrate, a misorientation A satisfies a condition represented by formula below; RSA ≥ 40 wherein, in the formula, RSA refers to a ratio, in area%, of a total of the cross-sectional areas of particles, each of which has a misorientation A ranging from 0 degrees or more to below 10 degrees, to a total of the cross-sectional areas of particles, each of which has a misorientation A ranging from 0 degrees or more to 45 degrees or less constituting 100 area%; and the misorientation A refers to an angle, in degrees, formed by a normal to the cross-sectional surface and a normal to a plane of a particle of the α-type Al 2 O 3 layer in the intermediate layer, and as to a cross-sectional surface which is located within 1 μm below a surface of the upper layer toward the substrate and is parallel to the surface of the substrate, a misorientation B satisfies a condition represented by formula below, RSB ≥ 40 wherein, in the formula, RSB refers to a ratio, in area%, of a total of the cross-sectional areas of particles, each of which has a misorientation B ranging from 0 degrees or more to below 10 degrees, to a total of the cross-sectional areas of particles, each of which has a misorientation B ranging from 0 degrees or more to 45 degrees or less constituting 100 area%; and the misorientation B refers to an angle, in degrees, formed by a normal to the cross-sectional surface and a normal to a plane of a particle of the TiCN layer in the upper layer, wherein RSA and RSB are measured using electron backscatter diffraction (EBSD) and obtained with the respective methods described in the description. the coating layer comprises a lower layer including at least one of a TiC layer, a TiN layer, a TiCN layer, a TiCNO layer, a TiB 2 layer or a TiCO layer, an intermediate layer including an α-type Al 2 O 3 layer containing α-type Al 2 O 3, and an upper layer including a TiCN layer containing TiCN; the respective layers are laminated in this order from the substrate side toward a surface side of the coating layer; an average thickness of the coating layer is from 5.0 μm or more to 30.0 μm or less, an average thickness of the lower layer is from 3.0 μm or more to 15.0 μm or less, an average thickness of the intermediate layer is from 3.0 μm or more to 15.0 μm or less, and an average thickness of the upper layer is from 1.0 μm or more to 6.0 μm or less; as to a cross-sectional surface which is located within 1 μm below a surface of the intermediate layer toward the substrate and is parallel to the surface of the substrate, a misorientation A satisfies a condition represented by formula below; RSA ≥ 40 wherein, in the formula, RSA refers to a ratio, in area%, of a total of the cross-sectional areas of particles, each of which has a misorientation A ranging from 0 degrees or more to below 10 degrees, to a total of the cross-sectional areas of particles, each of which has a misorientation A ranging from 0 degrees or more to 45 degrees or less constituting 100 area%; and the misorientation A refers to an angle, in degrees, formed by a normal to the cross-sectional surface and a normal to a plane of a particle of the α-type Al 2 O 3 layer in the intermediate layer, and as to a cross-sectional surface which is located within 1 μm below a surface of the upper layer toward the substrate and is parallel to the surface of the substrate, a misorientation B satisfies a condition represented by formula below, RSB ≥ 40 wherein, in the formula, RSB refers to a ratio, in area%, of a total of the cross-sectional areas of particles, each of which has a misorientation B ranging from 0 degrees or more to below 10 degrees, to a total of the cross-sectional areas of particles, each of which has a misorientation B ranging from 0 degrees or more to 45 degrees or less constituting 100 area%; and the misorientation B refers to an angle, in degrees, formed by a normal to the cross-sectional surface and a normal to a plane of a particle of the TiCN layer in the upper layer, wherein RSA and RSB are measured using electron backscatter diffraction (EBSD) and obtained with the respective methods described in the description.