Treklyano (Bulgarian: Трекляно, pronounced [ˈtrɛkʎɐno]; also transliterated Trekljano or Trekliano) is a village in southwestern Bulgaria, part of Kyustendil Province.

It is the administrative centre of Treklyano Municipality, which lies in the northwestern part of Kyustendil Province.

Treklyano lies in an isolated valley at the foot of the 1,733-metre Milevets peak in the border mountain of Milevska Planina.

It was also mentioned in Ottoman tax registers of 1570-1572 as Predoshnitsa or Preglino and a few years later, in 1576–1577, it was listed as Terklyane.

Linguists suggest a derivation from *traklo, itself from trak ("tie, belt") or from Greek τρί-κλινος, "three-bedded", referring to stream beds.