Denis or Dennis Hickey (or Hickie) may refer to:
Dennis Hickey (American football) (born 1970), general manager of the Miami Dolphins Dennis W. Hickey (1844–1908), Union Army soldier in the American Civil War and Medal of Honor recipient Dennis Walter Hickey (1914–1999), American Catholic bishop Denny Hickey (1890–1965), American racing driver Denis Hickey (born 1964), Australian cricketer Denis Hickie (born 1976), Irish rugby player Denis J. Hickie (1943–2021), Irish rugby union player
See also Hickey (surname)