District 125 could refer to:
School districts
Atwood Heights District 125, a grade school district headquartered in Alsip, Cook County, Illinois Oglesby Elementary School District 125, a grade school district in Oglesby, LaSalle County, Illinois Stevenson High School (Lincolnshire, Illinois), Consolidated High School District 125, Lake County, Illinois Medicine Valley School District 125, a unit school district headquartered in Curtis, Frontier County, Nebraska Manvel School District 125, a grade school district in Manvel, Grand Forks County, North Dakota
National legislative districts
District 125 of the Bundestag, the German parliament
United States legislative districts
Georgia House of Representatives District 125
Kansas House of Representatives 125th District, the seat held by Carl Holmes
New York State Assembly District 125, the seat held by Barbara Lifton
Missouri House of Representatives District 125, the seat held by Barney Joe Fisher Pennsylvania House of Representatives, District 125, the seat held by Mike Tobash Texas House of Representatives District 125, the seat formerly held by Justin Rodriguez
Other districts
King County Water District 125, a public water district headquartered in Tukwila, Washington