I Wayan Koster

I Wayan Koster
Official portrait, 2025
8th Governor of Bali
Assumed office
20 February 2025
Vice GovernorI Nyoman Giri Prasta
Preceded bySang Made Mahendra Jaya (acting)
In office
5 September 2018 – 5 September 2023
Vice GovernorTjokorda Oka Artha Ardana Sukawati
Preceded byI Made Mangku Pastika
Hamdani (acting)
Succeeded bySang Made Mahendra Jaya (acting)
Member of the House of Representatives
In office
1 October 2004 – 14 May 2018
(resign)
Succeeded byI Gusti Agung Putri Astrid Kartika
Parliamentary groupIndonesian Democratic Party of Struggle Faction
ConstituencyBali
Majority37,947 (2004; 1st term)
185,901 (2009; 2nd term)
260,342 (2014; 3rd term)
Personal details
Born (1962-10-20) 20 October 1962
Singaraja, Bali, Indonesia
CitizenshipIndonesia
PartyPDI-P
Spouse
Ni Luh Putu Putri Suastini
​
​
(m. 1999)​
Children2 daughters
EducationJakarta State University (Doctor)
Alma materBandung Institute of Technology (BMath)
International Golden Institute (MM)
Jakarta State University (Dr.)
Occupation
Profession
Signature
Website
Nicknames
  • Koster
  • Nang Ayan Koster
  • Wayan Koster
Preview warning: Page using Template:Infobox officeholder with deprecated parameter alma_mater which should be merged with/replaced by education.

I Wayan Koster (born 20 October 1962) is an Indonesian politician and economist who is the 8th governor of Bali, serving in 2018–2023 and since February 2025. He was a member of the House of Representatives (DPR) representing the province of Bali from 2004 to 2018.

A three-term parliamentarian representing his home province, Koster studied at Bandung Institute of Technology and Jakarta State University before becoming a lecturer and eventually joining the Indonesian Democratic Party of Struggle (PDI-P).