John Henry Hoeven III (born March 13, 1957), is the current Governor of North Dakota and a member of the North Dakota Republican Party. He has been serving as Governor since December 15, 2000, making him the longest-serving current Governor in the United States. Prior to his election to the Governor's office, Hoeven served as the President of the nation's only state-owned bank, the Bank of North Dakota, from 1993 to 2000.

John Hoeven was born in Bismarck, North Dakota, and attended Dartmouth College where he was a brother of Alpha Chi Alpha Fraternity. He then received an MBA from the Kellogg School of Management at Northwestern University, and was a banker in Minot, North Dakota prior to pursuing a political career. From 1993 to 2000, he was the president and CEO of the state-owned Bank of North Dakota. He sought the office of the Governor of North Dakota as a Republican in 2000, and he was elected, defeating Democrat Heidi Heitkamp by a margin of 55 to 45 percent. Hoeven's governorship has also included a number of high-profile lawsuits brought against the state on everything from water management to hunting licenses to prison abuse. In 2004, when up for re-election, Hoeven faced Democratic challenger Joe Satrom. Hoeven won re-election by a vote of 71 to 28 percent. In late 2006, the state's budget surplus rose past $600 million dollars. As of November 2006, Hoeven is the most popular governor in the nation. His approval rating stands at 86 percent with only 10 percent disapproving. In 2007, Hoeven proposed a 24% increase in spending, effectively halving the state's $600 million surplus.

In January 2007, Hoeven became the nation's most senior governor, having been inaugurated on December 15, 2000, as established by the North Dakota Constitution. The nation's second longest serving governor is Rick Perry of Texas, who took office on December 21, 2000, when George W. Bush resigned the governorship in preparation to become president.