An internal combustion engine with a turbocharger , comprising: a cylinder block internally including a plurality of cylinders ; a cylinder head disposed on top of the cylinder block , and internally including a plurality of exhaust flow passages through which exhaust air (b) discharged from each of the plurality of cylinders flows; and the turbocharger including a rotational shaft , a turbine wheel , and a compressor wheel , the turbine wheel being disposed at one end of the rotational shaft , the compressor wheel being disposed at the other end of the rotational shaft , wherein at least the turbine wheel of the turbocharger is arranged inside the cylinder head , wherein the cylinder head internally includes a plurality of scroll passages for introducing the exhaust air (b) flowing through the plurality of exhaust flow passages to the turbine wheel , and the plurality of scroll passages are dispersedly arranged in the periphery of the turbine wheel , and wherein the plurality of scroll passages including a first scroll passage for introducing the exhaust air (b) from a first range (RA, Ra) in a circumferential direction of the turbine wheel to the turbine wheel , and a second scroll passage for introducing the exhaust air (b) from a second range (RB, Rb), which is different from and does not overlap with the first range (RA, Ra) in the circumferential direction of the turbine wheel , to the turbine wheel , wherein the plurality of cylinders are arranged along a first direction, and wherein the rotational shaft extends along a second direction orthogonal to the first direction, as seen along an axial direction of each of the cylinders , and is arranged above the plurality of cylinders in a center part of the plurality of cylinders in an arrangement direction of the plurality of cylinders . aud a cylinder block internally including a plurality of cylinders ; a cylinder head disposed on top of the cylinder block , and internally including a plurality of exhaust flow passages through which exhaust air (b) discharged from each of the plurality of cylinders flows; and the turbocharger including a rotational shaft , a turbine wheel , and a compressor wheel , the turbine wheel being disposed at one end of the rotational shaft , the compressor wheel being disposed at the other end of the rotational shaft , wherein at least the turbine wheel of the turbocharger is arranged inside the cylinder head , wherein the cylinder head internally includes a plurality of scroll passages for introducing the exhaust air (b) flowing through the plurality of exhaust flow passages to the turbine wheel , and the plurality of scroll passages are dispersedly arranged in the periphery of the turbine wheel , and wherein the plurality of scroll passages including a first scroll passage for introducing the exhaust air (b) from a first range (RA, Ra) in a circumferential direction of the turbine wheel to the turbine wheel , and a second scroll passage for introducing the exhaust air (b) from a second range (RB, Rb), which is different from and does not overlap with the first range (RA, Ra) in the circumferential direction of the turbine wheel , to the turbine wheel , wherein the plurality of cylinders are arranged along a first direction, and wherein the rotational shaft extends along a second direction orthogonal to the first direction, as seen along an axial direction of each of the cylinders , and is arranged above the plurality of cylinders in a center part of the plurality of cylinders in an arrangement direction of the plurality of cylinders . aud <EOS>