Ladushkin (Russian: Ла́душкин; German: Ludwigsort; Polish: Ludwinów; Lithuanian: Liudvigsortas) is a town in Kaliningrad Oblast, Russia, located between Kaliningrad and the Polish border. Population: 3,788 (2010 Census preliminary results); 3,796 (2002 Census); 3,108 (1989 Census).