List of highways numbered 120
Route 120 or Highway 120 can refer to multiple highways:
Argentina
Australia
Brazil
Canada
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Costa Rica
Finland
India
Japan
Korea, South
Mexico
United Kingdom
A120 road- B120 road
United States
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U.S. Route 120 (former)
Alabama State Route 120
Arkansas Highway 120
California State Route 120
Colorado State Highway 120
Connecticut Route 120
Florida State Road 120 
Georgia State Route 120
Hawaii Route 120 (former)
Illinois Route 120
Indiana State Road 120
K-120 (Kansas highway)
Kentucky Route 120
Louisiana Highway 120
Maine State Route 120
Maryland Route 120 (former)- Massachusetts Route 120
M-120 (Michigan highway)
Minnesota State Highway 120
Missouri Route 120
Nevada State Route 120
New Hampshire Route 120
New Jersey Route 120 
New Mexico State Road 120
New York State Route 120 
New York State Route 120A
County Route 120 (Cortland County, New York)- County Route 120 (Herkimer County, New York)
- County Route 120 (Jefferson County, New York)
County Route 120 (Monroe County, New York)- County Route 120 (Montgomery County, New York)
- County Route 120 (Niagara County, New York)
County Route 120 (Rensselaer County, New York)- County Route 120 (Seneca County, New York)
County Route 120 (Steuben County, New York)- County Route 120 (Wayne County, New York)
North Carolina Highway 120
Ohio State Route 120
Oklahoma State Highway 120
Oregon Route 120
Pennsylvania Route 120
Rhode Island Route 120
South Carolina Highway 120
Tennessee State Route 120
Texas State Highway 120 (former) 
Utah State Route 120
Vermont Route 120
Virginia State Route 120 - Virginia State Route 120 (1928-1933) (former)
- Virginia State Route 120 (1933-1940) (former)
Washington State Route 120 (former)
Wisconsin Highway 120
Wyoming Highway 120
- Territories
| Preceded by 119 | Lists of highways 120 | Succeeded by 121 |