Jackson, C.F.
- Biography, news and excerpt of Won't Be Denied.
- http://www.cfjackson.us/

Jardine, Quintin
- Scottish crime writer's official site. Features a biography, journal, information about the novels, list of events, photos, and mailing list.
- http://www.quintinjardine.com/

Johnston, Dorothy
- Author of the Canberra-based mysteries. Profile, reviews, bibliography, and extracts.
- http://members.iinet.net.au/~dorothy1/

Jance, J.A.
- Official site includes a publicity photograph, biography, schedule of appearances, newsletter, and comments about her own novels.
- http://www.jajance.com/

Johnson, Stephen
- Features a biography, excerpts, and information about the print-on-demand process.
- http://www.stephen-johnson.com/

Jecks, Michael
- Official site of the British author who specializes in medieval murder mysteries. Listing (with descriptions) of his novels, a biography, and event details.
- http://www.michaeljecks.co.uk/

Jackson, Marian J. A.
- Presents information about the novels in the Miss Danforth series, which features a 19th century heiress detective.
- http://www.marianjackson.net/

Jeffreys, Colvin
- Australian author of murder mystery novels and romance thriller crime books.
- http://www.ozbooks.0golf.com/