Heynella is a monotypic genus of flowering plants belonging to the family Apocynaceae.

The only species is Heynella lactea.

[1] It is native to Java.

[1] The genus name of Heynella is in honour of Karel Heyne (1877–1947), a Dutch botanist.

[2] It was first described and published in Blumea Vol.6 on page 381 in 1950.