Lake Sylva is an 11-acre man-made lake along the Shabakunk Creek on the campus of The College of New Jersey in Ewing, Mercer County, New Jersey, United States.

[1][2] The lake was created when an earthen dam was constructed across the Shabakunk in the 1920s by a local landowner, prior to the construction of the current college campus.

It once contained several islands, but these were removed during a dredging project in 1988-1989.

[3] The lake is adjacent to Lake Ceva, and together the two lakes are the basis of the name of the Hillwood Lakes section of Ewing.