McLaggen is the surname of a wizarding family. It is unknown if they are pure-blood, or have both Muggle and magical heritage.

Family Members

Possible Relations


McLaggen is a Scottish surname, an anglicised form of the Gaelic Mac Gille Adhagain, meaning "son of the servant of Adocan."[1][2]

J. K. Rowling revealed that she discovered the surname while writing Harry Potter and the Half-Blood Prince and felt compelled to use it for a character because she thought it was "too good to waste".[3]

Notes and references

  1. "McLaggen" on The Internet Surname Database
  2. "McLagan" on
  3. J. K. Rowling at the 2004 Edinburgh Book Festival