Highway 2A may refer to:
Canada
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Alberta Highway 2A
Ontario Highway 2A (former)
India
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United States
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U.S. Route 2A
New England Route 2A (former)
Connecticut Route 2A
Massachusetts Route 2A
Nevada State Route 2A- New York State Route 2A (mid-1920s–1927)
- New York State Route 2A (1930–1939)
- New York State Route 2A (1939 – early 1940s)
Vermont Route 2A
- Territories
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