Llwynypia (Welsh: Llwynypia [ˌɬʊɪnəˈpiːja]) is a village and community (and electoral ward) in Rhondda Cynon Taf, Wales, near Tonypandy in the Rhondda Fawr Valley. Before 1850 a lightly populated rural farming area, Llwynypia experienced a population boom between 1860 and 1920 with the sinking of several coal mines after the discovery of large coal deposits throughout the Rhondda Valleys. The Welsh name means "the grove of the Magpie" or "Magpie's Bush" and was taken from the name of a farm that once existed in the area.