Master key may refer to:
- a type of key, see Key (lock)
- a skeleton key
- Master Key, a game on the gameshow The Price is Right, see List of The Price Is Right pricing games
Famous quotes containing the words master and/or key:
“There are many skillful apprentices, but few master workmen.”
—Henry David Thoreau (1817–1862)
“This is the Key of the Kingdom:
In that Kingdom is a city;”
—Unknown. This Is the Key (l. 1–2)