There is numerous surname that comes from B in Harry Potter sequels, including Bagman, Bagshot, Bell, Binns, and "Black."

Bagman

The head of the Ministry of Magic consists of Bagman. Ludo Bagman was the Department of Magical Games and Sports head.

This family name discovers between 1880 and 1920 in the United States, per Ancestry.

At those times, they mainly used the name for traveling salesman.

Bagshot

Bagshot is a magician, author, and old family friend of Dumbledore who lives in Harry's village. She was the great-aunt of the dangerous Dark wizard Gellert Grindelwald.

Harry wanted to see his parent's graveyard and headed to Bathilda Bagshot in Godric's Hollow. Her last title may vanish with her demise.

The character appeared in Harry Potter and the Deathly Hallows Part 1 when Lord Voldemort killed her and used her outer skin to defect Harry.

Bell

Bell is an occupational name and Katie Bell is the Dumbledore's Army and Gryffindor.

Binns

Binns means hollow. Cuthbert Binns is the wizard, professor, and a ghost. He was the only ghost teacher at Hogwarts.

"Black"

They are the oldest and richest pure-blooded family as one of the Scared Twenty-Eight.

They are the royal family in the wizarding world who removed Squibs and Muggles from their family trees.

Phineas Nigellus, a former Hogwarts headmaster, and Sirius are the family members.

While some 'Balck Family' supported Lord Voldemort, practiced Darks Arts, and became 'Death Eaters,' some took faith in the purification like Sirus and helped Harry.

Sirus shares a relationship with Arthur Weasley and Molly. But Harry was surprised with him being related to Molfoys.

After the demise of Regulus and Sirius, the male line became extinct. But it continued with the Malfoy family and his cousin with a female line.

Bones

Bones has a magical & muggle mixed heritage having a strong link to the Ministry of Magic.

They are the reputed household who became Lord Voldemort's target as they got killed by 'Death Eaters.'

The Bones family are Serphina, Edger, Amelia, and Susan Bones.

Boot

Boots are the half-blood mixed of magical and muggle heritage.

Albert Boot, DL Boot, and Terry Boot were part of Hogwarts.

They are the most reputed family in America as they are related to the Calderon Boot household.

Brown

Brown is the pure-blood line in the wizard family. The surname originated from people with brown hair nickname.

Lavender Brown is the Gryffindor student and the girlfriend of Ron.

Bustrode

Bulstrode is a former pure blood, but the recent members are half-blood. It is a rare surname in the UK.

The family has a distant connection to the Crabbes, 'Black,' Flints, and Potters families.

Bryce

Bryce was a muggle bloodline who served as the Gardner for the Riddle household.

Erick Sykes played the role of Frank in Harry Potter and the Goblet of Fire.

Burbage

Burbage is a canonical wizarding household.

Charity Burbage was the muggle studies teacher. Voldemort kills her and feeds Nagini.

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