Night's Black Agents is a collection of fantasy and horror short stories by American writer Fritz Leiber.

Most of the stories originally appeared in the magazines Unknown and Weird Tales.

The last two stories showcase Leiber's Sword and Sorcery heroes Fafhrd and the Gray Mouser.

The Berkley (1978) reprint adds two stories "The Girl with the Hungry Eyes" and "A Bit of the Dark World".

The definitive version is the Gregg Press (1980) hardcover which adds a Foreword by Richard Gid Powers to the complete contents of the Berkley edition and is thus an expansion of the original Arkham House edition.