Lester Anthony Beardslee (February 1, 1836 – November 10, 1903) was an officer in the United States Navy who served as the commander of the Department of Alaska and of USS Jamestown from June 14, 1879, to September 12, 1880.

[3] After promotion to lieutenant commander in July 1862, Beardslee served as executive officer of USS Nantucket.

In October 1863, he was transferred to USS Wachusett, later participating in the capture of CSS Florida.

[7] After relinquishing his command in Alaska, he was promoted to captain in November 1880 and to commodore in January 1894.

He kept his flag on USS Philadelphia and was instrumental in choosing Port Angeles Harbor as a location for naval practice.