Guslitsa, Guslica, or Guslicy (Russian: Гу́слица, Гу́слицы) is a region situated in the eastern part of Moscow Oblast. Guslitsa is famous for it was almost entirely inhabited by the Old Believers, mainly popovtsy (Belokrinitskaya Hierarchy, now — Russian Orthodox Old-Rite Church). Name Guslitsa occurs from the Guslitsa River.

Guslitsa is also well known for its cultural heritage and its home-crafts, mainly hand-written singing books and copper mouldings. Guslitsa has its center in the Rudnya and Ilyinsky Pogost villages.

Nowadays Guslitsa lies almost entirely within Orekhovo-Zuyevsky District of Moscow Oblast.

The regions neighboring Guslitsa (currently also unofficial) were also mainly inhabited by the old believers and were influenced by the Guslitsa culture a lot. Among them are: Ramenye, Zakhod, Zaponorye, Patriarshina, Vokhna.

1. Russian: Михайлов С. С. Так что же считать Гуслицами? Альманах "Гуслицы", 2004 [1].
2. Russian: Михайлов С.С., Марков А.П. Старообрядцы Гуслиц [2].
3. Russian: Агеева Е. А. Гуслица. Альманах "Гуслицы", вып. 5, 2007 [3].

55°28.3′N 38°54.1′E / 55.4717°N 38.9017°E / 55.4717; 38.9017