Wesley Kanne Clark (born December 23, 1944) is a former United States Army officer. He graduated as valedictorian of the class of 1966 at West Point and was awarded a Rhodes Scholarship to the University of Oxford, where he obtained a degree in Philosophy, Politics and Economics. He later graduated from the Command and General Staff College with a master's degree in military science. He spent 34 years in the U.S. Army, receiving many military decorations, several honorary knighthoods, and the Presidential Medal of Freedom.

Clark commanded Operation Allied Force during the Kosovo War during his term as the Supreme Allied Commander Europe of NATO from 1997 to 2000.

Clark joined the 2004 race for the Democratic Party presidential nomination as a candidate in 2003, but withdrew from the primary race in 2004, after winning the Oklahoma state primary, endorsing and campaigning for the eventual Democratic nominee, John Kerry. Clark leads a political action committee, "WesPAC", which he formed after the 2004 primaries and used to support Democratic Party candidates in the 2006 midterm elections. Clark was considered a potential candidate for the Democratic nomination in 2008, but, on September 15, 2007, endorsed Senator Hillary Clinton. After Clinton dropped out of the presidential race, Clark endorsed the then-presumptive Democratic nominee, Barack Obama. Clark has his own consulting firm, Wesley K. Clark and Associates, and is chairman and CEO of Enverra, a licensed boutique investment bank. He has worked with over 100 private and public companies on energy, security, and financial services. Clark is engaged in business in North America, Africa, Europe, the Middle East, Latin America and Asia. Between July 2012 and November 2015, he was an honorary special advisor to Romanian prime minister Victor Ponta on economic and security matters.

Clark's military career began July 2, 1962, when he entered the United States Military Academy at West Point, New York. He later said that Douglas MacArthur's famous "Duty, honor, country" speech was an important influence on his view of the military. The speech was given to the class of 1962 several months before Clark entered West Point, but a recording was played for his class when they first arrived.

Clark sat in the front in many of his classes, a position held by the highest performer in class. Clark participated heavily in debate, was consistently within the top 5% of his class as a whole (earning him "Distinguished Cadet" stars on his uniform) and graduated as valedictorian of West Point. The valedictorian is first to choose a career specialty in the Army, and Clark selected armor. He met Gertrude Kingston, whom he later married, at a USO dance for midshipmen and West Point cadets.

Clark applied for a Rhodes Scholarship during his senior year at West Point, and learned in December 1965 that he had been accepted. He spent his summer at the United States Army Airborne School at Fort Benning, Georgia. He completed his master's degree in Philosophy, Politics, and Economics (PPE) at Magdalen College at the University of Oxford in August 1968. While he was at Oxford, a Jewish cousin of Clark's who lived in England telephoned him and informed him of his Jewish heritage, having received permission from Veneta Clark. Clark spent three months after graduation at Fort Knox, Kentucky, going through Armor Officer Basic Course, then went on to Ranger School at Fort Benning. He was promoted to captain and was assigned as commander of the A Company of the 1st Battalion, 63rd Armor, 24th Infantry Division at Fort Riley, Kansas.