The Herbology High Commission was, based off its name, some form of diplomatic mission from a Commonwealth nation located in Great Britain that was specifically focused on herbology. The high commission gave out an annual award for literature, the Herbology Book of the Year. Known recipents of this award include Winogrand's Wonderous Water Plants by Selina Sapworthy.
- Harry Potter and the Goblet of Fire (film) (First mentioned)
- Harry Potter and the Deathly Hallows: Part 2 (Mentioned only)