Kelly Mills is a character in the novel Friday the 13th: Church of the Divine Psychopath.

A 26-year-old woman with a troubled history, Kelly, while in a drunken stupor, wanders into The Ministry of the Heavenly Vessel cult and joins the group, developing a crush on Church founder Father Eric Long. As time goes on, Kelly grows increasingly disillusioned with the cult, especially when Father Eric has his followers sell all their belongings and move to Camp Crystal Lake, where he plans to revive Jason Voorhees, who the cult is dedicated to worshipping. At this point, Kelly only stays in the camp to try and help her friend, the seventeen-year-old Meredith, but this friendship becomes complicated when Meredith reveals that she has a crush on Kelly.

After Jason is awakened by Father Eric and begins to slaughter church members, Kelly flees from him and reaches a black ops group, which had been sent to seek out and destroy Jason, stationed nearby. Eventually, Kelly and the black ops group leader, Walter Hobb, are the only ones left at Camp Crystal Lake, Walter's fellow operatives and the cult members having been either killed by each other or Jason. Aiding Walter in a plan to defeat Jason, Kelly lures Jason to the main cabin of Camp Crystal Lake, where Walter blows him apart with grenade launchers. With Jason seemingly dead, Walter and Kelly collect his remains before leaving the area in a partially working LAV