On Basilisk Station is a science fiction novel by American writer David Weber, first published in 1993. It is the first book in his Honor Harrington series, and follows Commander Honor Harrington and Her Majesty’s light cruiser Fearless during their assignment to the Basilisk system. Though Basilisk Station and the planet of Medusa have become a dumping ground for military officers from Honor's home star system of Manticore who are currently in disfavor, she is determined to discharge her duty regardless of the circumstances.

Q-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fire and sink them.