Lonjin () is a village in Serbia. It is situated in the Ljubovija municipality, in the Mačva District of Central Serbia. The village had a Serb ethnic majority and a population of 337 in 2002.
Historical population
1948: 341 1953: 349 1961: 334 1971: 301 1981: 286 1991: 388 2002: 337In Serbian Књига 9, Становништво, упоредни преглед броја становника 1948, 1953, 1961, 1971, 1981, 1991, 2002, подаци по насељима, Републички завод за статистику, Београд, мај 2004,
References
See also List of places in Serbia