Sligo Creek is a free-flowing tributary of the Northwest Branch of the Anacostia River in Maryland. The creek is approximately 9.1 miles (14.6 km) long, with a drainage area of about 11.6 square miles (30 km2).

Sligo Creek Trail is a paved hiker-biker trail running along Sligo Creek in the suburbs of Washington, D.C. Most of the trail passes through tree-filled parkland. The trail and surrounding park is a popular place for locals to jog, walk, bicycle, roller-skate, and take their children to the playground. Many local families enjoy picnicking at one of the 15 picnic areas along the trail.