Armoured catfish may refer to:

• Family Loricariidae: The armoured suckermouth catfish, also known as suckermouth catfish, armoured catfish or simply 'plecs' or 'plecos'
• Family Callichthyidae: armoured catfish, includes the genera
  • Corydoras, sometimes referred to as armoured catfish
  • Callichthys, known as the armoured catfish
  • Hoplosternum, known as the brown hoplo, cascadura or armoured catfish and in Guyana it's called Hassa.
• Callichthys callichthys, a species popular in the aquarium trade, common name 'armoured catfish'
• The thorny catfishes, Doradidae, are also sometimes referred to as armoured catfish