Accokeek (/ˈækəkiːk/), "at the edge of the hill" in Algonquin,[3] is a census-designated place (CDP) located in Prince George's County, Maryland, United States.

The CDP is located on the Potomac River, borders Charles County and is approximately 17 miles from Washington.

In 1990, the United States Census Bureau officially made Accokeek a CDP.

The area around Accokeek had been occupied since around 2000 BC; however, the first permanent village was established in c. 1200 AD by the Piscataway tribe.

[7] The village of Moyaone disbanded and the population migrated to other tribes before other Europeans settled the area.

The Native Americans were upset that the settlers were wearing-out the land due to farming various crops, which led to multiple battles between the two.

[10] Henry and Alice Ferguson settled in Accokeek when they purchased Hard Bargain Farm overlooking the Potomac River in 1922 as a vacation retreat.

The Foundation was used to purchase 200 acres (81 ha) of land in Piscataway Park to help preserve the area.

[13] Much of the community west of Route 210 is designated the Moyaone Reserve and contains mid-century, individually-designed homes on minimum 5-acre wooded lots.

Both these sites have numerous special events, including an annual Oktoberfest, and a "theater in the woods".

In 1960, the Washington Suburban Sanitary Commission (WSSC) wanted to build a water treatment plant in Mockley Point, which was Accokeek shoreline.

Since it would disrupt the view of Mount Vernon and Fort Washington Park, various people and organizations protested against it.

[5] In 1961, a law was signed by President John F. Kennedy in order to designate 133 acres (54 ha) around Mockley Point as a national landmark.

[17] In 2008, eight people were killed and 9 more were injured in Accokeek on Indian Head Highway in an illegal street race.

[35] In 2013, as a response to Maryland's Firearm Safety Act, Beretta closed the factory and moved operations to Gallatin, Tennessee, in 2016.

[36][37] The following sites located at Accokeek are included on the National Register of Historic Places: Prince George's County Police Department District 5 Station in Clinton CDP and District 7 Station in Fort Washington CDP serve the community.

[53] The State of Maryland's MTA Maryland operates two express commuter buses, routes 640 and 650, which operate from Waldorf or La Plata, stopping in Accokeek en route to Washington, D.C.[54] There are currently no Interstate Highways in Accokeek; however there are four state highways:[55]