Disocactus is genus of epiphytic cacti from Mexico to South America. It should not be confused with Discocactus, which is another genus.

Synonymy

• Aporocactus Lem.
• Aporocereus Fric & Kreuz. (orth. var.)
• Bonifazia Standl. & Steyerm.
• Chiapasia Britton & Rose
• Disisocactus Kunze (orth. var.)
• Disocereus Fric & Kreuz. (orth. var.)
• Lobeira Alexander
• Mediocereus Fric & Kreuz. (orth. var.)
• Nopalxochia Britton & Rose
• Pseudonopalxochia Backeb.
• Trochilocactus Linding.
• Wittia K.Schum.
• Wittiocactus Rauschert

Disocactus often includes Pseudorhipsalis as well.