Sir Nobonk and the Terrible Dreadful Awful Naughty Nasty Dragon (also known by the shorter title of Sir Nobonk and the... Dragon) is a 1982 comedy novel written by Spike Milligan, and the fourth picture book by Milligan after The Bald Twit Lion, Badjelly the Witch and Dip the Puppy.

The story of Sir Nobonk is a generic parody of traditional stories about knights and dragons, set within a medieval world with modern anachronisms for comic purposes (such as garden hoses for knights to wash out their armour).

[1] The story takes place in the mythical Kingdom of Rotten Custard, a kingdom that exists within Cornwall, where knights are constantly at war with the Dragons.

Setting forth into the nearby forest, Sir Nobonk successfully captures the last living dragon, and convinces the king to open a zoo to help dragons to repopulate.

The plan becomes successful, and also helps humans and dragons to co-exist peacefully within the kingdom.