Polycoccum laursenii is a species of lichenicolous fungus in the family Polycoccaceae.

It was first described as a new species in 2004 by Russian mycologist Mikhail Petrovich Zhurbenko.

[2] It is similar to Polycoccum cladoniae but differs from it in having smaller spores.

[1] Polycoccum laursenii is a lichenicolous fungus, meaning that it infects lichens.

Its only documented host species is Cladonia pocillum.