American Family Life Assurance Company (Aflac), an American insurance provider, is the largest of its kind that provides supplemental insurance. Established in 1955, the company opened its first office in Colombus, Georgia. Aflac was founded by three notable brothers, John Amos, Paul Amos, and William Amos. In its early days, Aflac was known as the American Family Life Insurance Company. But in 1964, the name was changed to American Family Life Assurance Company.

Although Aflac is an underwriter for a host of insurance policies, it is more widely known for its payroll insurance deduction coverage and pays benefits in the form of cash for accidents or critical illnesses. The company offers several life insurance policies that cover not only accidents but also various critical illnesses including cancer. Besides covering hospitalization charges for a range of critical illnesses, the company also offers other types of insurance policies such as policies for dental care and intensive care and lump-sum amounts for short term disabilities.

Aflac covers other medical, daycare and transportation expenses under its insurance policies and also offers a host of human resource services for the Health Insurance Profitability and Accountability Act (HIPAA) as well as the Consolidated Omnibus Budget Reconciliation Act (COBRA).

From 1979, up to 1997, the company invested in and owned several television stations, most of which were based in small- and medium-sized markets. However, it sold all of them to Raycom Media in 1997. Aflac is one of the 137th companies on the list of the largest Fortune 500 companies in the US.