Lake Phalen is an urban lake located in Saint Paul, Minnesota and in its suburb of Maplewood. It is one of the largest lakes in Saint Paul and is the centerpiece of the Phalen Regional Park System. The lake drains into the Mississippi River after traveling through Phalen Creek. The lake and surrounding 494-acre (2.00 km2) park receive around 500,000 visitors each year.

Saint Paul is the capital of the U.S. state of Minnesota and the county seat of Ramsey County. Situated on high bluffs overlooking a bend in the Mississippi River, Saint Paul is a regional business hub and the center of Minnesota's government. The Minnesota State Capitol and the state government offices all sit on a hill close to the city's downtown district. One of the oldest cities in Minnesota, Saint Paul has several historic neighborhoods and landmarks, such as the Summit Avenue Neighborhood, the James J. Hill House, and the Cathedral of Saint Paul. Like the adjacent city of Minneapolis, Saint Paul is known for its cold, snowy winters and humid summers.