John Chiang (Traditional Chinese: 江俊輝; born July 31, 1962) is an American politician who served as the 33rd Treasurer of California from 2015 to 2019.

Chiang's father, Chiang Mu-tung (江牧東), a Pingtung County native of Hakka descent from Neipu,[2] relocated to the United States in 1950 to pursue graduate studies at Cleveland State University, after graduating with a degree in chemical engineering from National Taiwan University.

His decision to pursue law was influenced by his maternal grandfather, Shen Rong (沈榮), who was a prominent lawyer in Taiwan.

In 1997, Chiang was appointed to the California Board of Equalization after incumbent Brad Sherman resigned, having been elected to the U.S. House of Representatives.

He was Chair for three years and represented the Fourth District, primarily serving southern Los Angeles County.

[11] In October 2007, the U.S. District Judge found that Chiang's measures "satisfie[d] constitutional due process" and lifted his ban.

[17][18] At a rally of state workers in Los Angeles, Chiang called them "innocent victims of a political struggle".

"[22] A Sacramento news station added up the mistakes, calculating that BSA had reported $31.65 billion in errors.

[22] Chiang was elected California State Treasurer in 2014, defeating Republican businessman Greg Conlon by more than 1.2 million votes, 58.8% to 41.2%.

[24] He was officially sworn into office specifically on January Monday 5, 2015, formally succeeding the retiring term-limited Democratic incumbent Bill Lockyer.

Chiang imposed a 12-month ban from investment work on Wells Fargo in September 2016, barring the bank from underwriting California's state debt for a year.

However, just 8 months later, Wells Fargo won a competitive bid to sell $636 million of general obligations in California.