Pirate King is a 2011 mystery novel by American author Laurie R. King. Eleventh in the Mary Russell series, the story features married detectives Mary Russell and Sherlock Holmes.

Pirate King

First edition (US)
Author	Laurie R. King
Cover artist	Joe Montgomery
Country	United States
Language	English
Series	Mary Russell
Genre	Detective fiction
Publisher	Bantam Books (US) Allison & Busby (UK)
Publication date	2011
Media type	Print (hardback)
Pages	304
ISBN	978-0-7490-4091-8
LC Class	PS3561.I4813 P57 2011
Preceded by	The God of the Hive
Followed by	Garment of Shadows

Sent to Lisbon and Morocco, where British studio Fflytte Films are creating a silent film version of The Pirates of Penzance, undercover Mary Russell investigates a series of crimes targeting the production and confronts a high-stakes situation when actual pirates orchestrate a hostage situation.