Furesø is a lake in Northeastern Zealand, Denmark and the deepest lake in Denmark. It defined the former Farum municipalitys southeasthern border and is the site of Nicolai Eigtveds 18th century small pleasure pavilion for Privy Councillor Johan Sigismund Schulin on the Furesø Lake called Frederiksdal Pavilion.
The lake neighbours the adjacent Farum Lake, to which it is connected by a short stream, Fiskebaek.
