| State: | PR |
| Type: | PR |
| Route: | 8 |
| Alternate Name: | Spanish; Castilian: Avenida Ramal Este |
| Maint: | Puerto Rico DTPW |
| Length Km: | 4.0 |
| Direction A: | West |
| Terminus A: | in Oriente |
| Direction B: | East |
| Terminus B: | in Sabana Llana Norte–Sabana Llana Sur |
| Municipalities: | San Juan |
| Previous Type: | Urban |
| Previous Route: | 6 |
| Next Type: | Urban |
| Next Route: | 9 |
Puerto Rico Highway 8 (PR-8) is a main highway that serves as a third route (the others being PR-3 and PR-26) from San Juan, Puerto Rico to Carolina, Puerto Rico.[1] It is, still, a highly congested highway, noticeable when congestion jams are found in PR-17 where PR-8 begins and it continues to PR-3. The first kilometers of PR-8 (east of PR-17) were known before as Puerto Rico Highway 4, but the Department of Transportation renumbered the entire highway PR-8 and there is no longer a PR-4. It ends in PR-3 in Carolina.[2]