Howard Leslie Schnellenberger was an American football coach with long service at both the professional and college levels. He held head coaching positions with the National Football League (NFL)'s Baltimore Colts and in college for the University of Miami, University of Oklahoma, University of Louisville, and Florida Atlantic University. He won a national championship with Miami in 1983.

The Baltimore Colts were a professional American football team that played in Baltimore from 1953 to 1983, when owner Robert Irsay moved the franchise to Indianapolis. The team was named for Baltimore's history of horse breeding and racing. It was the second incarnation of the Baltimore Colts, the first having played for three years in the All-America Football Conference and one in the National Football League (NFL). This Baltimore Colts played their home games at Memorial Stadium.