Utricularia sandersonii is a small perennial carnivorous plant that belongs to the genus Utricularia. It is endemic to South Africa and is known to grow in northern KwaZulu-Natal to Transkei. U. sandersonii grows as a lithophyte on wet, often vertical rocky surfaces at altitudes from 210 m (689 ft) to 1,200 m (3,937 ft). It was originally described and published by Daniel Oliver in 1865. It is a very distinct species that has entered cultivation and thrives in conditions that are easy to replicate.
U. sandersonii is listed on the New Zealand National Pest Plant Accord since it is an invasive species.