Rei Ayanami's hairstyle is often referred to as a
short, blunt bob with straight bangs. Some also call it a
hime cut, though it's not a traditional hime cut as those are typically longer and have distinct side locks. However, the straight bangs and bluntness are reminiscent of the style.
Therefore, the best and most common descriptions are:
* Short, blunt bob with straight bangs
* Ayanami Rei cut (simply referencing the character's signature style)
