What does “neo” mean in the Airbus A320neo name?

In the Airbus A320neo name, “neo” means “New Engine Option.”

Airbus used the name for an updated version of the A320 family offering customers a choice of newer, more efficient engines. The program also included aerodynamic improvements such as modified wingtip devices and other refinements.

The two main engine choices are the CFM International LEAP-1A and the Pratt & Whitney PW1000G. Compared with earlier A320-family models, these engines were intended to reduce fuel consumption and emissions while preserving the family’s common operational features.

“Neo” is therefore a product name, not a separate aircraft manufacturer or a reference to a new fuselage design. The aircraft remains part of the A320 family and retains substantial commonality with earlier versions.