Ponsonby Cruising Club is a yacht club at Westhaven Marina, on Westhaven Drive in Saint Marys Bay, Auckland. It was founded in 1900 in Saint Marys Bay and has been on Auckland's waterfront ever since. Its distinctive feature is the Mullet Boats, which race here each year for the Lipton Cup, and 2025 was the 104th running of that race.
The club holds a Thursday evening Rum Race, which starts at 4:30pm, with crews welcome, and it runs a Women's Series, a Winter Series, and upper harbour races to Riverhead and Taikata at Te Atatū. The Classic Yacht Association joins for the Upper Harbour Regatta, the Vintage and Veterans Regatta, and an ANZAC Day regatta with a Mark Foy start. Junior Learn to Sail has run from St Marys Bay since the 1930s, and adult courses are offered too. The dinghy courses follow the Yachting New Zealand system and are taught by accredited instructors.
From the clubrooms, one side looks over the Waitematā Harbour and the Harbour Bridge, and the other over the marina towards the city and the Sky Tower. Three rooms are for hire, the Harbour View Lounge, the Logan Room and the Marina View Room, for events such as presentations, training, weddings, reunions and wakes. The club has an accessibility lift, and it is looking for volunteers.