The Guslitsa (Russian: Гу́слица), also known as Guslyanka (Гусля́нка) is a river in Moscow Oblast, Russia.

Flows all over again on the North, and then on the West, running in the Nerskaya at the village Khoteichi.

The upper reaches of the Guslitsa River up to village Ilyinsky Pogost are densely populated and almost without forest.

Guslitsa freezes in November — the beginning of December, it is opened in the end of March — April.

The city of Yegoryevsk and the villages of Ilyinsky Pogost and Slobodishche are situated on the Guslitsa River.