The 81st Support Aviation Regiment (Serbo-Croatian: 81. puk pomoćne avijacije / 83. пук помоћне авијације) was an aviation regiment established in 1944 as 2nd Yugoslav Assault Regiment (Serbo-Croatian: 2. jugoslovenski vazduhoplovni jurišni puk / 2. југословенски ваздухопловни јуришни пук, Russian: 2-й Югославский штурмовой авиационный полк) formed from Yugoslav partisan aviators on training in Soviet Union.