The Highland Lodge, also known as Pequea, is a historic home and resort building complex located at Frederick, Frederick County, Maryland, United States. It consists of a large Victorian period frame house centered at the end of a circular driveway, and its complement of outbuildings. The house is large and rambling and considered eclectic in style with a prominent central projecting gable. The property includes a frame stable and carriage house, now garages; a small frame barn; a small log dwelling moved to the property in the early 20th century; a frame summer kitchen and a frame secondary dwelling. It was developed originally in 1881 as a summer home for John H. Williams, a wealthy and influential Frederick attorney and banker.
The Highland Lodge was listed on the National Register of Historic Places in 1998.