The last Conan novel that I'm aware of is Conan of Venarium by Harry Turtledove (2003). Not including comics and such, have any Conan stories been published since then?
Yes and No
Between 2005 and 2006, a new series of nine Conan novels were published, under the collective name Age of Conan. They are divided into three trilogies:
- Legends of Kern (by L.L. Coleman)
- A Soldier's Quest (by R.A. Knaak)
- Marauders (by J. Mariotte)
These novels tie into the online role-playing game of the same name, Age of Conan.
It should be noted that none of these novels features Conan directly — they are simply set in the Conan the Barbarian universe and make occasional references to him — and so in that sense, Conan of Venarium is the most recent novel to feature the character of Conan.