Idritsa (Russian: Идрица) is an urban locality (a work settlement) in Sebezhsky District of Pskov Oblast, Russia, located on the Idritsa River, a left tributary of the Velikaya River. Municipally, it is incorporated as Idritsa Urban Settlement, one of the three urban settlements in the district. Population: 4,988 (2010 Census); 5,784 (2002 Census); 5,485 (1989 Soviet census).