US Popularity Rank: 8617

Origin: German

Meaning: Advice, counsel

Allow baby full rein with a name like this! Rein is a Germanic gender-neutral name meaning “advice” or “counsel.” It derives from the German element ragin and is sometimes spelled Reign or Rain. As a word, rein is also used to describe the straps used on a horse while riding, or in reference to a controlling influence. Whether you’re a fan of the royal family or want baby to be their own source of counsel, Rein is the way to go.