Te Kahu o Waipuna, the Marlborough Art Gallery, is a public art gallery at 15 High Street in central Blenheim. It opened in June 2023 as a purpose-built gallery in a building shared with Marlborough Library, and the name was gifted by local iwi, Rangitāne o Wairau. The gallery shows work from local, national and international artists in regularly changing exhibitions, with talks, floor talks, workshops and youth art programmes.
The gallery is a not-for-profit run by a charitable trust, with a small paid team and many volunteers, who greet weekday visitors at the front desk. It has a shop selling local and New Zealand-made pottery, ceramics, books, cards and gifts. Metered parking is on High Street, and there is more at the rear on Wynen Street. The gallery began in 1999 as the Millennium Public Art Gallery, opposite Seymour Square.