An impeller of a centrifugal compressor, the impeller comprising: a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover, wherein, in a dimensionless position along a camber line of the blade, which is a virtual curve drawn by connecting the middle of the thickness direction of the blade when the position of a leading edge of the blade is defined as 0 and the position of a trailing edge of the blade is defined as 1, a position where an angle difference between a first blade angle at a disc-side end portion of the blade and a second blade angle at a cover-side end portion of the blade is maximum is in a range of 0.5 or more and 1 or less, the blade angle (β) being an angle that determines the curved surface shape of the blade from the leading edge to the trailing edge of the blade; where the blade angle (β) is derived by drawing a projected curve by projecting the camber line onto the disc from one side in the axis direction; and where for any point along the projected curve the blade angle (β) is defined as an angle formed by a tangent line to the projected curve and a virtual line connecting the axis to the tangent point (Tp) between the projected curve and the tangent line, the angle being formed backward of the virtual line in the rotational direction of the disc on the radially outer side of the tangent point (Tp) characterized in that the first blade angle is -10 degrees or more and 0 degrees or less at the position where the angle difference is maximum, and in that a value obtained by dividing a difference between the second blade angle and an assumed angle when change in the second blade angle over change in the dimensionless position is assumed to be constant from the leading edge to the trailing edge by a difference between the second blade angle at the leading edge and the assumed angle is 0.15 or less at the position where the angle difference is maximum. a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover, wherein, in a dimensionless position along a camber line of the blade, which is a virtual curve drawn by connecting the middle of the thickness direction of the blade when the position of a leading edge of the blade is defined as 0 and the position of a trailing edge of the blade is defined as 1, a position where an angle difference between a first blade angle at a disc-side end portion of the blade and a second blade angle at a cover-side end portion of the blade is maximum is in a range of 0.5 or more and 1 or less, the blade angle (β) being an angle that determines the curved surface shape of the blade from the leading edge to the trailing edge of the blade; where the blade angle (β) is derived by drawing a projected curve by projecting the camber line onto the disc from one side in the axis direction; and where for any point along the projected curve the blade angle (β) is defined as an angle formed by a tangent line to the projected curve and a virtual line connecting the axis to the tangent point (Tp) between the projected curve and the tangent line, the angle being formed backward of the virtual line in the rotational direction of the disc on the radially outer side of the tangent point (Tp) characterized in that the first blade angle is -10 degrees or more and 0 degrees or less at the position where the angle difference is maximum, and in that a value obtained by dividing a difference between the second blade angle and an assumed angle when change in the second blade angle over change in the dimensionless position is assumed to be constant from the leading edge to the trailing edge by a difference between the second blade angle at the leading edge and the assumed angle is 0.15 or less at the position where the angle difference is maximum.