Mollymook is located on the South Coast of New South Wales, Australia and is part of the Milton-Ulladulla area, which is approximately 3 hours drive south of Sydney.

It forms part of a seven kilometre stretch of unbroken urban development from the south of Ulladulla to Narrawallee inlet. Along the coast, geographically Mollymook consists of Mollymook Beach, at the southern end of which is the Mollymook golf club and surf lifesaving club, through to Bannister Head and then the southern section of Narrawallee beach. In peak holiday times South Mollymook Beach, North Mollymook Beach and Narrawallee are all patrolled by surf life savers.