Federal League Park or just Federal Park (also known as Greenlawn Park) is the name of a former baseball park in Indianapolis, Indiana, United States. The park, constructed in 1913, was home to the Indianapolis Hoosiers of the Federal League in 1914. The park was demolished in 1916.

Federal league park was constructed in 1913 for a team in the Columbian League. After an investor dropped support for the team, the park became the home field for Indianapolis Hoosiers of the Federal League.

The park was demolished in 1916 and replaced with a freight yard for nearby railroads. The street location of the park was conventionally given in newspapers and city directories as "Kentucky Avenue and West Street". The location is more precisely described as Kentucky Avenue and a railroad track (southeast, center field); Oliver Street (south, right field); White River (some distance west, first base); and "Old Greenlawn Cemetery" (north, third base). Henry Street teed into Kentucky across from the left field area. West Street itself intersected Kentucky (and still does) about half a block to the northeast of the ballpark, where Kentucky ends and South Street begins.

The dimensions of the ballpark were:

• Left field – 365 feet (111 m)
• Left center – 421 feet (128 m)
• Center field – 428 feet (130 m)
• Right center – 351 feet (107 m)
• Right field – 304 feet (93 m)
• Backstop – 62 feet (19 m)

Coincidentally, the site of this short-lived ballpark is very close to current professional sports facilities in the city. The Kentucky-West-South intersection is just a block south of Victory Field and a block west of Lucas Oil Stadium.

• List of baseball parks in Indianapolis

• Sanborn map showing northwest portion of the ballpark, 1914
• Sanborn map showing northeast portion of the ballpark, 1914
• Sanborn map showing southwest portion of the ballpark, 1914