Interstate 84 (Pennsylvania–Massachusetts)
| I-84 highlighted in red | |
| Route information | |
| Length | 232.71 mi (374.51 km) | 
| Existed | 1971–present | 
| NHS | Entire route | 
| Major junctions | |
| West end | I-81 / I-380 / US 6 in Dunmore, PA | 
| 
 | |
| East end | I-90 Toll / Mass Pike in Sturbridge, MA | 
| Location | |
| Country | United States | 
| States | Pennsylvania, New York, Connecticut, Massachusetts | 
| Highway system | |
Interstate 84 (I-84) is an Interstate Highway in the Northeastern United States that extends almost 233 miles (375 km) from Dunmore, Pennsylvania, near Scranton at an interchange with I-81 east to Sturbridge, Massachusetts, at an interchange with the Massachusetts Turnpike (I-90). Among the major cities that the road passes through is Hartford, Connecticut, and the road provides a major portion of the primary route between New York City and Boston. Another highway named I-84 is located in the Northwestern United States.