A famous fashion company in Paris is named after the messenger of the gods.
The planet Mercury is named after Hermes' Roman counterpart.
Hermes is the name of Percy Weasley's owl (who delivers the mail) in Harry Potter and the Chamber of Secrets.
The con man Autolycus in Shakespeare's A Winter's Tale is said to be the son of Mercury (a.k.a. Hermes).
Mercury Records (the label of Elton John, U2, Arcade Fire, Noah and the Whale) is named after you-know-who.