
Events from the year 1911 in the United States.

A list of American films released in 1911.

The Battle of Kelley Creek, also known as the Last Massacre, is often considered to be one of the last known massacres carried out between Native Americans and forces of the United States, and was a closing event to occur near the end of the American Indian warfare era. In January 1911 a small group of Bannocks and Shoshones killed four investigative agents in a ranch after they had been pursued for abducting cattle. A posse of policemen and citizens was sent to track the natives, who were found encamped near Winnemucca, Nevada, in a region known as Kelley Creek. A largely one-sided battle ensued on February 25 that ended with the direct deaths of nine people, eight Daggetts and one mortally wounded American. At the time the affair was briefly characterized as a Native American revolt, though it is now mostly regarded as a family's attempted escape from law enforcement.

The Los Angeles Times bombing was the purposeful dynamiting of the Los Angeles Times Building in Los Angeles, California, on October 1, 1910, by a union member belonging to the International Association of Bridge and Structural Iron Workers. The explosion started a fire which killed 21 newspaper employees and injured 100 more. It was termed the "crime of the century" by the Times.

The Los Angeles Times bombing was the purposeful dynamiting of the Los Angeles Times Building in Los Angeles, California, on October 1, 1910, by a union member belonging to the International Association of Bridge and Structural Iron Workers. The explosion started a fire which killed 21 newspaper employees and injured 100 more. It was termed the "crime of the century" by the Times.

The North Pacific Fur Seal Convention of 1911, formally known as the Convention between the United States and Other Powers Providing for the Preservation and Protection of Fur Seals, was a treaty signed on July 7, 1911, designed to manage the commercial harvest of fur-bearing mammals in the Pribilof Islands of the Bering Sea. The treaty, signed by the United States, Great Britain, Japan, and Russia, outlawed open-water seal hunting and acknowledged the United States' jurisdiction in managing the on-shore hunting of seals for commercial purposes. It was the first international treaty to address wildlife preservation issues.

The Pyramid of Capitalist System is a common name of a 1911 American cartoon caricature critical of capitalism, copied from a Russian flyer of c. 1901. The graphic focus is on social stratification by social class and economic inequality. The work has been described as "famous", "well-known and widely reproduced". A number of derivative works exist.