Provided is an air intake device for an internal combustion engine, the air intake device being configured so that a reduction in the amount of intake air is minimized. An air intake device for an internal combustion engine has: an intake air path for supplying air from a surge tank to the combustion chamber of the internal combustion engine; and an exhaust gas path for supplying exhaust gas from an exhaust gas distribution header to the combustion chamber. The length of the exhaust gas path measured along the centerline of the exhaust gas path is set to be in the range from 75% to 125%, inclusive, of the length of the intake air path measured along the centerline of the intake air path.