Fort Popham

	Fort Popham Memorial
	U.S. National Register of Historic Places
	U.S. National Historic Site
	Fort Popham and the Kennebec River
	Fort Popham Location in Maine
Location	Phippsburg, Maine
Coordinates	43°45′17″N 69°47′02″W / 43.75472°N 69.78389°W
Built	1861
Architect	US Army Corps of Engineers
NRHP reference No.	69000012
Fort Popham
Part of Coast Defenses of the Kennebec
Phippsburg, Maine
Site information
Type	Fortification
Owner	Public - State of Maine
Controlled by	State of Maine
Open to; the public	partly
Site history
Built	1857–1869
Built by	U.S. Army Corps of Engineers
In use	1864–1865, 1898–1899, 1917–1918, 1941–1945
Materials	Granite
Garrison information
Garrison	Civil War: 7th Unassigned Company of Maine Infantry; World War I: Coast Defenses of Portland; World War II: Harbor Defenses of Portland;
Added to NRHP	1 October 1969

Fort Popham is a Civil War-era coastal defense fortification at the mouth of the Kennebec River in Phippsburg, Maine. It is located in sight of the short-lived Popham Colony and, like the colony, named for George Popham, the colony's leader. The site is preserved as Fort Popham State Historic Site.