The name Alphonse is a boy's name of German, French origin meaning "noble, ready for battle". Alphonse and is often added to lists like Names with Inspirational Meanings and discussed in our forums with posts like "Baby a Day".
From the experts:
Rarely used, and for good reason. Alonzo is a preferable choice.
Alphonse does have a mixed bag of notable namesakes—French novelist Alphonse Daudet, painter Alphonse Mucha, and it was the birth name of gangster Al Capone.