Swainsona is a genus of about 85 species of flowering plants in the family Fabaceae, and is endemic to Australia.

Plants in this genus are herbs or subshrubs with imparipinnate leaves and usually purple flowers similar to others in the family.

Plants in the genus Swainsona are prostrate to erect annual or perennial herbs or subshrubs, often with many stems at the base.

There are ten stamens, nine of which are joined with each other and the tenth free and facing the standard petal.

[12] The following is a list of species of Swainsona accepted by Plants of the World Online as of 10 September 2023:[2] Species of Swainsona are found in all six Australian states and in the Northern Territory and Australian Capital Territory.