Johnny Messner (born April 11, 1970) is an American actor.
Messner was born on April 11, 1970 in Syracuse, New York. He lived in Europe for 13 years while his father served in the United States Air Force, mainly in Germany and England. During this time, he developed a love for sports while playing on teams at military bases. He has one brother and one sister. As an actor Messner is probably best known for his work in the films Tears of the Sun, The Whole Ten Yards and Hostage, and in the TV series Guiding Light (working with friend Frank Grillo and a young Hayden Panettiere), Law & Order: Special Victims Unit and Cold Case. Messner's life partner is Kathryn Morris, whom he met while shooting Cold Case. They have twins: Jameson West Messner and Rocco McQueen Messner.