Financial regulation is a form of regulation or supervision, which subjects financial institutions to certain requirements, restrictions and guidelines, aiming to maintain the integrity of the financial system. This may be handled by either a government or non-government organization.

The aims of financial regulators are usually:

The following is a short listing of regulatory authorities in various jurisdictions, for a more complete listing, please see list of financial regulatory authorities by country.

In most cases, financial regulatory authorities regulate all financial activities. But in some cases, there are specific authorities to regulate each sector of the finance industry, mainly banking, securities, insurance and pensions markets, but in some cases also commodities, futures, forwards, etc. For example, in Australia, the Australian Prudential Regulation Authority (APRA) supervises banks and insurers, while the Australian Securities and Investments Commission (ASIC) is responsible for enforcing financial services and corporations laws.

Joseph Eugene Stiglitz, ForMemRS, FBA, (born February 9, 1943) is an American economist and a professor at Columbia University. He is a recipient of the Nobel Memorial Prize in Economic Sciences (2001) and the John Bates Clark Medal (1979). He is also the former Senior Vice President and Chief Economist of the World Bank. He is known for his critical view of the management of globalization, free-market economists (whom he calls "free market fundamentalists") and some international institutions like the International Monetary Fund and the World Bank.

In 2000, Stiglitz founded the Initiative for Policy Dialogue (IPD), a think tank on international development based at Columbia University. Since 2001, he has been a member of the Columbia faculty, and has been a University Professor since 2003. He also chairs the University of Manchester's Brooks World Poverty Institute and is a member of the Pontifical Academy of Social Sciences. Stiglitz is an honorary doctor of Durham Business School, an honorary doctor at the Charles University, an honorary professor at Tsinghua University School of Public Policy and Management and a member of the Executive and Supervisory Committee (ESC) of CERGE-EI in Prague. Stiglitz is one of the most frequently cited economists in the world.

Warren Edward Buffett (/ˈbʌfɨt/; born August 30, 1930) is an American business magnate, investor, and philanthropist. He is widely considered the most successful investor of the 20th century. He is the primary shareholder, chairman and CEO of Berkshire Hathaway. He is consistently ranked among the world's wealthiest people. He was ranked as the world's wealthiest person in 2008 and is the third wealthiest person in the world as of 2011. In 2012, American magazine Time named Buffett one of the most influential people in the world.

Buffett is called the "Wizard of Omaha", "Oracle of Omaha", or the "Sage of Omaha" and is noted for his adherence to the value investing philosophy and for his personal frugality despite his immense wealth. Buffett is also a notable philanthropist, having pledged to give away 99 percent of his fortune to philanthropic causes, primarily via the Gates Foundation. On April 11, 2012, he was diagnosed with prostate cancer.

Buffett was born in 1930 in Omaha, Nebraska, the second of three children and only son of U.S. Representative Howard Buffett, a fierce critic of the interventionist New Deal domestic and foreign policy, and his wife Leila (née Stahl). Buffett began his education at Rose Hill Elementary School in Omaha. In 1942, his father was elected to the first of four terms in the United States Congress, and after moving with his family to Washington, D.C., Warren finished elementary school, attended Alice Deal Junior High School, and graduated from Woodrow Wilson High School in 1947, where his senior yearbook picture reads: "likes math; a future stock broker."

Gary S. Gensler (born October 18, 1957) is the chairman of the U.S. Commodity Futures Trading Commission under President Barack Obama.

Gensler was Undersecretary of the Treasury (1999-2001) and Assistant Secretary of the Treasury (1997-1999) in the United States. Barack Obama selected him to lead the Commodity Futures Trading Commission, which has jurisdiction over $5 trillion in trades. Gensler was sworn in on May 26, 2009.

After receiving a BS and an MBA from the Wharton School of the University of Pennsylvania, Gary Gensler spent 18 years at Goldman Sachs, making partner when he was 30, becoming head of the company’s fixed income and currency trading operations in Tokyo by the mid-’90s, and eventually the company’s co-head of finance. Subsequent to his time at the Treasury he acted as a Senior Adviser to Senator Paul Sarbanes, one of the authors of legislation that eventually became the Sarbanes-Oxley Act, designed to bring greater oversight to the accounting industry and reform of corporate governance.