Provided is an intake device mounted to an in-line multi-cylinder engine, the intake device comprising: a surge tank that includes a throttle body attachment section in the center section thereof; one intake pipe and another intake pipe respectively connected to one end section and another end section of the surge tank in the left-right direction; a first intake pipe group connected to the one intake pipe and formed from a branched plurality of intake pipes; and a second intake pipe group attached to the other intake pipe and formed from the same number of branched intake pipes.