To provide a drain for gutter capable of easily removing accumulated fallen leaves or the like even when covering an eaves edge with a folded plate or in an eaves gutter formed of a coil worked valley gutter.

This drain for gutter comprises a cleaning port 3 openable and closable by a lid member 33 provided on a gutter side wall 10 in the vicinity of a drain port 2 in a gutter 1. Even if fallen leaves or dust is trapped by the chute of the drain, they can be easily removed by removing the lid member 33 of the cleaning port 3 and inserting the hand to the chute through the opened cleaning port. After the removal, the lid member is re-installed to the cleaning port, whereby the drain can be quickly returned to an ordinary state.