To provide a movable body pulling-in device and a door closer which have a reduced size of space occupied by a lead-in part in an object in which the lead-in part is arranged.

A striker device 10 includes: a striker 11 rotating from a standby position to a holding position; and a damper 15 braking the rotation of the striker 11. A catcher device 20 includes: a catcher 21 receiving the striker 11 at the standby position and displacing from the receiving position to a lead-in position; an energization spring 22 energizing the catcher 21 from the receiving position toward the lead-in position; and a locking elastic body 23 regulating energization by engaging with the catcher 21 at the receiving position. The locking elastic body 23 receives pressing force from the striker 11 to the catcher 21 by closing movement of a door panel through the catcher 21 receiving the striker 11 and releases the engaging.