A turbocharger comprising: a rotating shaft extending along an axis; a turbine wheel provided at a first end portion of the rotating shaft; a compressor wheel provided at a second end portion of the rotating shaft; a housing accommodating at least a portion of the rotating shaft in a longitudinal direction along the axis; bearings (5A, 5B) provided in the housing and configured to support the rotating shaft to be rotatable around the axis; supply flow paths (72A, 72B) supplying lubricating oil to the bearings (5A, 5B); a discharge oil chamber formed in the housing and to which the lubricating oil is discharged from the bearings (5A, 5B); and an oil drainage port formed below the discharge oil chamber and configured to discharge the lubricating oil to the outside of the housing, wherein the discharge oil chamber is formed to be asymmetric between a first region and a second region defined by a vertical plane including the axis of the rotating shaft as a boundary plane, and in an upper side of the rotating shaft in the discharge oil chamber, the distance of an upper surface on a downstream side in a rotating direction of the rotating shaft from the axis is larger than the distance of an upper surface on an upstream side in the rotating direction of the rotating shaft from the axis, in the discharge oil chamber, a distance (w) in the width direction from the axis to a side wall surface on the first side and to a side wall surface on the second side is the same, at the upper end of the rotating shaft, a cross-sectional area of the discharge oil chamber on the downstream side in the rotating direction of the rotating shaft is larger than a cross-sectional area of the discharge oil chamber on the upstream side in the rotating direction, the downstream side in the rotating direction is a front side in the rotating direction in a direction in which a tangent of the rotating shaft extends at the upper end, and the upstream side in the rotating direction is a rear side in the rotating direction in a direction in which a tangential direction of the rotating shaft extends at the upper end. a rotating shaft extending along an axis; a turbine wheel provided at a first end portion of the rotating shaft; a compressor wheel provided at a second end portion of the rotating shaft; a housing accommodating at least a portion of the rotating shaft in a longitudinal direction along the axis; bearings (5A, 5B) provided in the housing and configured to support the rotating shaft to be rotatable around the axis; supply flow paths (72A, 72B) supplying lubricating oil to the bearings (5A, 5B); a discharge oil chamber formed in the housing and to which the lubricating oil is discharged from the bearings (5A, 5B); and an oil drainage port formed below the discharge oil chamber and configured to discharge the lubricating oil to the outside of the housing, wherein the discharge oil chamber is formed to be asymmetric between a first region and a second region defined by a vertical plane including the axis of the rotating shaft as a boundary plane, and in an upper side of the rotating shaft in the discharge oil chamber, the distance of an upper surface on a downstream side in a rotating direction of the rotating shaft from the axis is larger than the distance of an upper surface on an upstream side in the rotating direction of the rotating shaft from the axis, in the discharge oil chamber, a distance (w) in the width direction from the axis to a side wall surface on the first side and to a side wall surface on the second side is the same, at the upper end of the rotating shaft, a cross-sectional area of the discharge oil chamber on the downstream side in the rotating direction of the rotating shaft is larger than a cross-sectional area of the discharge oil chamber on the upstream side in the rotating direction, the downstream side in the rotating direction is a front side in the rotating direction in a direction in which a tangent of the rotating shaft extends at the upper end, and the upstream side in the rotating direction is a rear side in the rotating direction in a direction in which a tangential direction of the rotating shaft extends at the upper end.