Jesús Jorgé Ejército^[1][2] (Tagalog pronunciation: [ɛhɛɹˈsɪtɔ]; July 10, 1939 – August 8, 1988), better known as George Estregan or George Estregan Sr., was a Filipino mestizo film actor.

Estregan made his film debut in 1963 with Jose Nazareno, ang Taxi Driver.^[3] He was often cast as a villain and was infamously known as the "Penetration King" of erotic Philippine cinema.^[3]

Estregan won critical acclaim for many of his performances. In 1972, he was named FAMAS Best Actor for Sukdulan, and would win two other FAMAS Awards for Best Supporting actor for Kid Kaliwete (1978) and Lumakad Kang Hubad sa Mundong Ibabaw (1980). He was nominated for the FAMAS Award three other times, as Best Actor for Lumapit, Lumayo ang Umaga (1975) and Lalake Ako (1982), and for Best Supporting Actor in Magkayakap sa Magdamag (1986). He also received a nomination from the Gawad Urian as Best Actor for Hostage: Hanapin si Batuigas (1977).

Jesús Jorgé Marcelo Ejercito was born on July 10, 1939, at Manuguit Maternity Hospital (now known as Amisola Maternity Hospital) in Tondo, Manila, to Engr. Emilio Ejercito Sr. and Mary Ejercito.^[1] His older brother is former Philippine President and former Manila Mayor, Joseph Estrada.^[3]

He was married to Ramona Pelayo-Ejercito of Ibajay, Aklan, with whom he had four children: actor Emilio Ramon Ejercito III ("George Estregan, Jr."), Maria Georgina Ejercito, Kurt Joseph Ejercito, and George Gerald Ejercito. He was also the father of actor Gary Jason Ejercito ("Gary Estrada") and Philippine Basketball Association player Rain or Shine Elasto Painters Gherome Eric Ejercito out of wedlock. His grandson Kiko Estrada is also an actor.