Jose Pimentel Ejercito Jr. (born February 17, 1963), better known as Jinggoy Estrada or Jinggoy Ejercito Estrada, is a Filipino politician and actor serving as a senator since 2022 and previously from 2004 to 2016. He served as president pro tempore of the Senate from 2007 to 2013 and again from 2024 to 2025. He also briefly became the acting Senate President in 2013 after Juan Ponce Enrile's resignation. Before serving in the Senate, he was the vice mayor (1988–1992) and later mayor (1992–2001) of San Juan when it was still a municipality.

Estrada has been detained twice for corruption charges. In April 2001, he and his father, ousted president Joseph Estrada, were arrested after being charged with plunder. He was released in 2003, elected to the Senate in 2004, and was acquitted in 2007. In 2014, he was charged and detained for allegedly embezzling ₱183 million from his discretionary funds in a scandal known as the pork barrel scam. In 2016, he was released after being allowed to post bail. He sought reelection in the 2019 Senate election but lost. He ran again in 2022 and won a Senate seat. In 2024, Estrada was convicted on one count of committing direct bribery and two counts of indirect bribery, but acquitted on charges of plunder over the use of the Priority Development Assistance Fund. He was sentenced to 8 to 9 years for direct bribery, 2 to 3 years for indirect bribery and ordered to pay a fine of ₱3 million. In August 2024, Sandiganbayan reversed Estrada's conviction of one count of direct bribery and two counts of indirect bribery.

Outside politics, Estrada, like his father, is also an actor who has starred in numerous action films. He won the Best Actor Award in the 2007 Metro Manila Film Festival for the film Katas ng Saudi.

Estrada was born on February 17, 1963, in Manila to actor Joseph Estrada and physician Luisa Pimentel Ejercito. Beginning in his childhood, he migrated to the United States with his mother and his two siblings after his parents separated for 18 years following his father's extramarital affair with Guia Gomez in the 1960s.

Estrada finished his primary and secondary education at the Ateneo de Manila University and earned a degree in A.B. Economics from the University of the Philippines Manila. He took up Bachelor of Laws for four years at the Lyceum of the Philippines University while serving as vice mayor of the then Municipality of San Juan at the age of 25. He was also bestowed an honorary Doctorate in Humanities in 2007 by the Laguna State Polytechnic University.^{[citation needed]}

In 1988, Estrada became the vice mayor of then municipality of San Juan. He was 25 and a member of the Liberal Party at the start of his term.

In 1992, Estrada became the youngest ever elected-local chief executive during the 1992 Philippine local elections at age 29. During his three consecutive terms as mayor, he spearheaded the construction of modernized barangay halls with daycare centers and various recreational areas such as gymnasiums, basketball courts and playgrounds. The renovation and repair of the San Juan National High School and other public elementary schools also took place, as well as the improvement and replacement of drainages, concreting of municipal roads, and the construction of the four-storey San Juan Medical Center and the San Juan Municipal Gymnasium. During his incumbency, San Juan gained the reputation of being one of the most progressive municipalities and the "most peaceful municipality in the Philippines".

During his final tenure as mayor, he was sworn into office as the national president of the League of Municipalities of the Philippines (LMP) from 1998 to 2001.