Twelve Mile Delta Campsite is a Department of Conservation campground situated on a gravel river delta at the outlet of Twelve-Mile Creek, near the shores of Lake Wakatipu.

Located on Glenorchy Road about 12 kilometres west of Queenstown, the site is reached via sealed road to the river delta, with narrow gravel roads around the campsite itself.

The campground accommodates up to 100 tent sites and is surrounded by regenerating native forest, offering a sense of seclusion despite its proximity to Queenstown.

Activities in the area include boating, swimming, fishing, walking, and mountain biking, and a basic boat ramp is available. Toilets and water supply are on site.

The location has an added cultural footnote: Twelve Mile Delta served as the filming site for Ithilien Camp in the Lord of the Rings film trilogy.