To provide a drain trap wherein hairs staying on a trapping member can be thrown away with no unpleasantness, and the trapping member is easily handled for the hairs to be easily thrown away.

The drain trap 1 comprises the trapping member 10 having a trapping member body 12 for trapping hairs in drainage water passing therethrough, and a handle 16 protruded from an outer edge 13 of the trapping member body in an outward direction D1 of the outer edge, and a trapping member mounting part 20 on which the trapping member body 12 is detachably mounted at a position L1 where the drainage water flowing downward is guided to a predetermined direction D3 deviating from a vertical direction D2 and the guided drainage water passes. The handle 16 is protruded upward or obliquely upward from the outer edge 13 of the trapping member body, and then the trapping member body 12 is mounted on the trapping member mounting part 20.