Latający Wilnianin (English: Flying Wilnianin^[a] ) was the popular name of a passenger train which in the interbellum period linked Warsaw with Wilno (now Vilnius, Lithuania). Another name for that train was Gwiazda Północy (The Star of the North).^[1]

In 1919, it took around 20 hours for a train to cross the distance of 423 kilometers between Warszawa Zachodnia (Warsaw West) and the station in Wilno. In 1939, this distance was crossed in 5 hours and 45 minutes. In the summer of 1939, the fast train left Warsaw daily at 9:05 to arrive at Wilno at 14:50.^[2] A second daily train between the two cities left Warsaw West at 16:41 and arrived at Wilno at 22:31.^[2]

The trains, both of which finished routes at then-border station of Turmont - Zemgale, Latvia, stopped at the following stations:

• Warsaw Główna
• Warszawa Wschodnia
• Białystok
• Grodno
• Porzecze [pl] (32 kilometers northeast of Grodno)
• Turmont - Zemgale, Latvia

• Luxtorpeda
• Polish Coal Trunk-Line
• Strzala Baltyku
• Saint Petersburg–Warsaw Railway

a ^{^} Wilnianin - Polish for inhabitant of Wilno (now Vilnius, Lithuania).