Helenka Pantaleoni, American actress and humanitarian, co-founded U.S. Fund for UNICEF (d. 1987)

Helen Tradusa "Helenka" Adamowska Pantaleoni (November 22, 1900 – January 5, 1987) was an American silent film actress and humanitarian. She was the founding director of the U.S. Committee for UNICEF, a role that she held for 25 years. Her granddaughter is American actress Téa Leoni.