Molesworth Airport is a small, private airstrip located within Molesworth Station in the Marlborough region of New Zealand's South Island. The station itself is the largest farm in New Zealand, covering approximately 182,000 hectares, and the airstrip primarily serves operational needs related to the station's management. The airport holds the ICAO code NZML and has no assigned IATA code, reflecting its non-commercial, utilitarian nature. It is used predominantly for light aircraft and helicopter operations supporting mustering, farm management, and occasional access by the Department of Conservation, which administers the surrounding land. Public access to Molesworth Station is limited and controlled, meaning the airstrip sees very little general aviation traffic. The remote, high-country terrain makes air access particularly valuable during periods when road access is restricted or impractical.