Abraliopsis affinis is a species of enoploteuthid cephalopod in the tropical waters of the eastern Pacific Ocean, and is known from Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama and Peru.

Female specimens spawn eggs in gelatinous strings with diameters of 0.9 to 1.5 millimetres (0.035 to 0.059 in).

[3] A. affinis is found over a large oceanic area which means that it is less affected by the actions of humans.

[1] It is found in Costa Rica, Chile, Colombia, Ecuador, Guatemala, Honduras, El Salvador, Mexico, Panama, Peru, and Nicaragua; it occurs in the eastern central and southeastern Pacific Ocean.

It is found at mid-depths below the surface and at night, it travels upwards for feeding.