The name Evening is a girl's name . Evening and is often added to lists like Unique Middle Names for Girls and discussed in our forums with posts like "Girls Makeover - Two Middles".
From the experts:
Though this feels like a new invention, people have used day names such as Morning and Afternoon for centuries -- and so why not Evening too? It's a lovely word with an evocative meaning and makes a perfect addition to this newly stylish group.