Frank Leslie's Popular Monthly (1876–1904) was an American magazine established by Frank Leslie as "the cheapest magazine published in the world." Contributors included Henry James and Eben E. Rexford. In 1905 it was continued by The American Magazine.

The American is an online magazine published by the American Enterprise Institute (AEI), a conservative think tank in Washington, D.C. The magazine's primary focus is the intersection of economics and politics. Previously known as The American: A Magazine of Ideas, it was published six times annually from November 2006 to December 2008.

The American Magazine was a periodical publication founded in June 1906, a continuation of failed publications purchased a few years earlier from publishing mogul Miriam Leslie. The original title, Frank Leslie's Popular Monthly, had begun publishing in 1876 and was renamed Leslie's Monthly Magazine in 1904, and then was renamed again as Leslie's Magazine in 1905. From September 1905 through May 1906 it was called the American Illustrated Magazine; then subsequently shortened as The American Magazine until publication ceased in 1956. It kept continuous volume numbering throughout its history.