Hamelin Bay�is a bay and a locality on the south-west coast of Western Australia between�Cape Leeuwin�and�Cape Naturaliste. It is named after French explorer�Jacques F�lix Emmanuel Hamelin�who sailed through the area in about 1801. It is south of�Cape Freycinet.
To the north, the beach leads to theﾠBoranup Sand Patchﾠand further to the mouth of theﾠMargaret River, while south leads toﾠCape Leeuwin. The nearest locality to the east isﾠKarridaleﾠon theﾠMargaret RiverﾠtoﾠAugustaﾠroad.
It was also was a small settlement and port inﾠWestern Australiaﾠon the coast of theﾠLeeuwin-Naturaliste Ridgeﾠwhich was established to service the timber milling operations ofﾠM. C. Davies. One of the Davies timber railways extended onto the Hamelin Bay Jetty, which was built in 1882 and extended in 1898. Only a few piles of the original jetty remain on site.