Port Ludlow is a census-designated place (CDP) in Jefferson County, Washington, United States. It is also the name of the marine inlet on which the CDP is located.The CDP's population was 1,968 at the 2000 census.
The United States Exploring Expedition, under Charles Wilkes, entered Puget Sound in 1841. Wilkes bestowed many patriotically American place names; at the time the sovereignty of the Oregon Country was yet to be resolved between Britain and the United States. Many of Wilkes's names commemorated American heroes and victories during the War of 1812. Port Ludlow was one of these, honoring Augustus C. Ludlow, a War of 1812 American naval hero.Early explorers of the Pacific Northwest often named sheltered inlets with names beginning with "Port". Communities that subsequently developed often adopted their inlet's name. Today Port Ludlow is both the name of the inlet and the community on its shore.To avoid confusion the inlet is sometimes called Port Ludlow Bay.