Alfred Jaretzki Jr. (1892–1976) was an American lawyer and an expert on investment companies. Jaretzki helped draft the Investment Company Act of 1940 passed by the United States Congress. He later authored an article in a 1941 issue of Washington University Law Quarterly that details the elements of the law and reasons for its passage. The Investment Act of 1940 created requirements for all U.S. investment companies to register with the Securities and Exchange Commission (SEC) and strengthened their government oversight.
Jaretzki was born in New York City to Alfred Jaretzki, a leading corporate lawyer, and Tillie Shire Jaretzki on November 17, 1892. Alfred Jaretzki, Sr. worked as a partner at Sullivan & Cromwell, an international corporate law firm founded by Algernon Sydney Sullivan and William Nelson Cromwell. Jaretzki, Sr. took over the role of managing partner of Sullivan & Cromwell from Cromwell in 1900.
After graduating from Morristown School (now Morristown–Beard School) in Morristown, New Jersey, Jaretzki completed his bachelor's degree at Harvard University in Cambridge, Massachusetts in 1913. He then earned a law degree at Harvard Law School in 1916. Jaretzki earned admittance to the Bar association that year. While at Harvard, Jaretzki served as a member of the Editorial Board of the Harvard Law Review. He also played on the lacrosse team and participated on the debate team.