Swamp iris is a common name for several plants and may refer to:
- Patersonia fragilis, native to southeastern Australia
- Iris ser. Hexagonae, a group of Iris species native to North America, also known as "Louisiana iris"
|This page is an index of articles on plant species (or higher taxonomic groups) with the same common name (vernacular name). If an internal link led you here, you may wish to edit the linking article so that it links directly to the intended article.|