Blanc, who goes by Jennifer Blanc-Biehn, is married to MichaelBiehn. The couple have one son, Dashiell King Biehn. The two were joint partners in "The Blanc/Biehn Production Company". She co-produced and starred alongside him in The Victim. She also co-starred in GoodFamily Times, a supernatural thriller film, which was also produced by Blanc/Biehn Productions.