Utricularia letestui is a small, probably annual, carnivorous plant that belongs to the genus Utricularia. It is endemic to the Central African Republic and is only known from three collections. U. letestui grows as a terrestrial plant in seasonally flooded grasslands, usually at altitudes around 800 m (2,625 ft). It was originally described and published by Peter Taylor in 1989. It was named in honor of the French collector G. Le Testu.
- Taylor, Peter. (1989). The genus Utricularia - a taxonomic monograph. Kew Bulletin Additional Series XIV: London.
- "Type specimen". Jstor. Retrieved 15 February 2016.
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