Leptocarpus is a genus of dioeceous rush-like perennial plants described as a genus in 1810.
The genus as currently conceived is entirely endemic to Australia. A few species native to other places were formerly included, but they have been moved to other genera.
The following species are accepted as of 2021:
Over 70 other names have been published using the name Leptocarpus, but they have been transferred to other genera, including the following:
In 1820, the name Leptocarpus was applied to some plants in the Verbenaceae. Thus was created an illegitimate homonym. One species name was included in the illegitimate genus, i.e.: