Keith Armstrong (born December 15, 1963 in Trenton, New Jersey) is an American football special teams coordinator for the Atlanta Falcons of the National Football League. Armstrong has over two decades of professional coaching experience. He played college football at Temple.
On December 31, 2012, NFL.com reported that Armstrong was expected to be interviewed by the Chicago Bears for the head coaching position after Lovie Smith's firing. He also met with the Philadelphia Eagles about possibly replacing Andy Reid. 
Armstrong grew up in Levittown, Pennsylvania, and played high school football at Bishop Egan High School in Fairless Hills, Pa. Keith and his wife, Kathleen, have two daughters, Kaitlin and Kristen.