Marsdenia incisa P.T.Li & Y.H.Li (1982) Sinomarsdenia incisa is a species of flowering plant in the dogbane family, Apocynaceae.

It is the sole species in genus Sinomarsdenia.

It is a climber native to southern Yunnan Province, and possibly to Guangxi, in south-central China.

[1] The species was first described as Marsdenia incisa in 1982 by P.T.Li and Y.H.Li.

In 1997 it was renamed Sinomarsdenia incisa, and placed in its own monotypic genus.