Lafayette Square (formerly Court House Park or Courthouse Square) is a park in the center of downtown Buffalo, Erie County, New York, United States that hosts a Civil War monument. The block, which was once square, is lined by many of the city's tallest buildings. The square was named for General Lafayette, who visited Buffalo in 1825.
The square was part of the original urban plan for the city as laid out by Joseph Ellicott in 1804. Its eastern edge has long been defined by important civic structures; first, the Erie County Courthouse, followed by the original Buffalo & Erie County Public Library. Presidential history was made in Lafayette Square when former United States President Martin Van Buren received the Free Soil Party nomination for the 1848 election. President-elect Abraham Lincoln also spoke at the square.