| Name | Meaning | Gender | Origin |
|---|
| Abbott | father | Male | Hebrew |
| Adrian | rich, wealthy, dark one | Male | Latin |
| Alastor | | Unisex | Hebrew |
| Amos | Brave
| Male | Hebrew |
| Andrew | manly, valiant, courageous | Male | Greek |
| Anthony | "priceless one" | Male | Latin |
| Aragog | | Unisex | |
| Argus | bright, watchful | Male | Greek |
| Arnold | The eagle rules.
| Male | English |
| Arthur | Strong as a rock, noble, follower of Thor | Male | Celtic |
| Augustus | Majestic dignity and grandeur.
| Male | Latin |
| Bane | A centaur.
| Male | |
| Baron | A low ranking nobleman. | Male | English |
| Bell | ringer of the bell | Male | English |
| Bill | comic-strip Bill the Cat | Male | English |
| Black | Dark | Male | English |
| Blaise | to lisp, stammer | Male | |
| Bob | bright, famous | Male | English |
| Bones | after doctor in Star Trek | Unisex | |
| Bradley | broad meadow | Male | English |
| Brian | strong | Male | Irish |
| Broderick | son of Roderick, from the broad ridge | Male | Norse |
| Brown | colour | Male | Color |
| Bryce | Son of a nobleman
| Male | English |
| Buckbeak | | Unisex | |