Jansky is a non-SI unit of electromagnetic flux.
Jansky or Janský may also refer to: 1932 Jansky, a main belt asteroid Jansky (crater), a lunar crater Jansky (surname), a Czech-language surname
See also Jansky noise, cosmic radiation discovered by Karl Guthe Jansky Jansky–Bielschowsky disease Jánský Vrch Castle, is a castle in the Czech Republic Janská, a municipality and village in the Czech Republic