U 4
U4 or U 4 stands for:
- U4 (Club) , a club in Vienna
- a child check-up, see child check-up # The individual examinations
- U4 railcar , a light rail car
- Udet U 4 , German aircraft from Udet Flugzeugbau
- Cover page 4 (back) for ad bookings in print publications, see pagination # covers
- U4 Alliance , a network of four international universities ( Ghent University , Uppsala University , University of Groningen , Georg-August University of Göttingen )
- the mitochondrial haplogroup U 4
U4 denotes the following underground lines:
- Subway line 4 (Berlin)
- Underground line B (Frankfurt am Main)
- Underground line 4 (Hamburg)
- Main line 3 (Munich subway) # U4
- Subway line 4 (Vienna)
U 4 is the name of the following submarines:
- SM U 4 , a submarine of the German Imperial Navy
- U 4 (kuk Marine) , a submarine of the Austro-Hungarian Navy
- U 4 (Kriegsmarine) , a submarine of the German Kriegsmarine
- U 4 (Bundeswehr) , a submarine of the German Navy
U-4 stands for:
- the name of the US armed forces for the aircraft Aero Commander 500
- Universal U-4, a Soviet tractor, see Universal (tractor)
