Letňany is a cadastral area of Prague, Czech Republic.

It has been part of Prague 18 since 2001, having previously been in the local government district of Prague-Letňany, and it has its own cadastral area (also called "Prague 18").

[2] Letňany was the site of the aircraft industry (Avia and Letov), but as the industry gradually declined Letňany became a mostly residential district.

The Air Accidents Investigation Institute has its head office in Letňany.

[3] The place has also been used as the venue for some big concerts, including AC/DC, Ed Sheeran, Rolling Stones, or Guns N' Roses, and Metallica, Rammstein and more.