Lachy

Lachy may refer to:


 * Lachy, Marne, a commune in the Marne department in north-eastern France
 * Lachy or Lendians, an ancient Polish tribe
 * Lachy Sądeckie, the Lachy culture of the Sądeckie region of Poland
 * Lachy, Podlaskie Voivodeship, a village in north-eastern Poland