I Wayan Koster

In 2018, he ran in the gubernatorial elections for Bali, resigning from his parliament seat in order to do so. Running with Tjok Oka Artha Ardhana Sukawati, the pair won with 57.68 percent of the votes. He was sworn in on 5 September 2018.

He announced ban the plastic, as stipulated in Gubernatorial Regulation (Pergub) No. 97/2018, expressing hope that the policy would lead to a 70 percent decline in Bali's marine plastics within a year.

During most of his time in the parliament, Koster was part of the tenth commission covering education, culture, sports, tourism and creative economy. He had voiced an opposition against a 2014 law which would alter the selection of the parliamentary speaker from appointment by the largest party in an election to that of a parliamentary vote. He also voiced his support for a law which would allow Balinese villages to pick between being a "cultural village" or a standard village. He was eventually retasked to the fifth commission on public works, transportation and rural development.

After being reelected in 2009 with 185,901 votes, Koster was investigated by the Corruption Eradication Commission several times during his second term. He was questioned in 2011 regarding a case in the education ministry, in 2013 regarding another case related to the National Sports Week, and in 2014 about the cases of Akil Mochtar and the Hambalang sports complex. He was reelected for a third term in 2014, winning 260,342 votes. This was the most votes for Bali candidates and third-most votes won by a parliamentary candidate nationally, after fellow PDI-P members Karolin Margret Natasa and Puan Maharani.

By 2003, he was specialist staff in PDI-P. In 2004, he ran for a seat in the People's Representative Council as part of PDI-P. During the campaigning process, he headed a committee of a rally supporting the party in his hometown. Participants of the rally clashed with that of another rally supporting Golkar, resulting in two deaths from the latter group. Koster received a civil suit due to his position. Regardless, Koster secured a seat in the parliament after the 2004 election, and was sworn in on 1 October that year.

After gaining his bachelors, he worked at the Ministry of Education and Culture as a researcher between 1988 and 1995. He then became a non-permanent lecturer at Tarumanegara University, Pelita Harapan University, Jakarta State University and an economic institute.

I Wayan Koster (born 20 October 1962) is an Indonesian politician who is the 10th governor of Bali. Before becoming governor, he was a member of the People's Representative Council representing the province.

He was born in the town of Singaraja on 20 October 1962. He completed his first twelve years of education there, graduating highschool in 1981. Afterwards, he moved to Bandung to study at Bandung Institute of Technology, from where he graduated in 1987 with a bachelor's degree in mathematics. Later on, he received a masters from the International Golden Institute (1995) and a doctorate from Jakarta State University (1999).