Ptghnavank (Armenian: Պտղնավանք) or Ptghni church (Պտղնիի տաճար) is located in the village of Ptghni in the Kotayk Province of Armenia.

The temple is a domed single-nave basilica type completed in the 6th or 7th century. Presently, the only surviving parts of the temple are most of the north wall, part of the south wall with one of the four impost arches of the dome, and some traces of the vaulting. The cupola and ceiling vaults, drum, and dome have since collapsed.

The church is noteworthy for its relief sculpture. Around the window casings, vegetal and geometric patterns may be found. Some restoration work had been done to the church in 1940.

• 
  Rear walls of the temple.
• 
  Another angle.
• 
  Ptghnavank monastery, general view
• 
  Ptghnavank monastery, south side
• 
  Ptghnavank monastery, arch
• 
  Ptghnavank monastery, arch
• 
  Ptghnavank monastery, arch
• 
  Ptghnavank monastery
• 
  Ptghnavank monastery, decor
• 
  Ptghnavank monastery, decor
• 
  Ptghnavank monastery, decor

• Kiesling, Brady (2005), Rediscovering Armenia: Guide, Yerevan, Armenia: Matit Graphic Design Studio

• Armenian Architectural Studies
• Armeniapedia.org: Ptghavank
• Armenica.org: Ptghni Church