Gaertnera is a genus of flowering plants in the family Rubiaceae.

Most all are regional endemics, plants limited to a small geographical area and narrowly adapted to local conditions.

[2] These are generally woody plants with clusters of white, pink, or red flowers and purple-black fruits.

Other species are dioecious, with plants having either male or female flowers.

[2] As of March 2023[update], Plants of the World Online accepted the following species:[5]