Interstate 86 may refer to any of three unconnected Interstate Highways in the United States:
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Interstate 86 (Pennsylvania–New York)
Interstate 86 (I-86) is an Interstate Highway that extends for through northwestern Pennsylvania and the Southern Tier region of New York (state), New York, in the United States. The highway has two segments: the longer of the two begins ...
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Interstate 86 (Idaho)
Interstate 86 (I-86) is an east–west intrastate Interstate Highway located entirely within the state of Idaho. It runs approximately from an intersection with I-84 east of Declo in rural Cassia County, to an intersection with I-15 ...
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Interstate 84 (Pennsylvania–Massachusetts)
Interstate 84 (I-84) is an Interstate Highway System, Interstate Highway in the Northeastern United States that extends almost 233 miles (375 km) from Dunmore, Pennsylvania, near Scranton, Pennsylvania, Scranton at an interchange with Inte ...
, section east of East Hartford, Connecticut was formerly designated as Interstate 86
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