Isaiah Jacob

In this Indian name, the name Jacob is a patronymic, and the person should be referred to by the given name, Isaiah. The abbreviation "s/o" or "d/o", if used, means "son of" or "daughter of" respectively.

Isaiah a/l D. Jacob^[1] (born 1966) is a Malaysian politician who has served as a Senator since March 2023.^[2] He is a member of the People's Justice Party (PKR), a component party of the Pakatan Harapan (PH) coalition.

Yang Berhormat Senator Tuan Isaiah Jacob
Senator
Appointed by the Yang di-Pertuan Agong
Incumbent
Assumed office 20 March 2023
Monarchs	Abdullah (2023–2024) Ibrahim Iskandar
Prime Minister	Anwar Ibrahim
Personal details
Born	Isaiah a/l D. Jacob 1966 (age 58–59)
Party	People's Justice Party (PKR)
Other political affiliations	Pakatan Harapan (PH)
Relations	V. David (uncle)

Political career

On 20 March 2023, Isaiah Jacob sworn in as Senator.^[3][4][5]

On April 3, 2023, all senators stood on one leg for one minute as a sign of support and solidarity for the one-legged Isaiah and persons with disabilities (PwD).^[6]

Isaiah’s illustrious cousin is trade unionist V David, who was a trade unionist and an MP who represented Bangsar, Dato' Kramat, Damansara, and Puchong.^[7]

Although David was his cousin, Isaiah grew up calling the former “uncle” as the senator was 34 years younger.^[8]

In 2025 party election, Isaiah Jacob contested as member of the Central Leadership Council of PKR managed gather around 1,396 votes and placed in 66th place.^[9]