| Country: | MYS |
| Type: | A |
| Route: | 121 |
| Alternate Name: | Jalan Slim |
| Length Km: | 23 |
| Direction A: | West |
| Direction B: | South |
| Terminus A: | Slim River |
| Destinations: | Slim Behrang Ulu |
| Terminus B: | Tanjung Malim |
| Junction: | Federal Route 1 Tanjung Malim–Slim River Highway Behrang–Proton City Highway |
Jalan Slim (Perak state route A121) is a major road in Perak, Malaysia. The road used to be Federal Road 1.
| Km | Exit | Junctions | To | Remarks | |
|---|---|---|---|---|---|
| Slim River | West Jalan Kuala Slim Kuala Slim North Ipoh Bidor Sungkai North–South Expressway Northern Route Bukit Kayu Hitam Ipoh Kuala Lumpur Rawang South Tanjung Malim–Slim River Highway Tanjung Malim Behrang | T-junctions | |||
| Kampung Banting | |||||
| Kampung Naram | |||||
| Kampung Tambak | |||||
| Kampung Penderas | |||||
| Kampung Sawa | |||||
| Slim | |||||
| Sungai Slim bridge | |||||
| Kampung Gesa | |||||
| Kampung Sungai Jurong | |||||
| Kampung Sungai Bil | Kampung Sungai Bil Sungai Bil waterfall | T-junctions | |||
| Kampung Sungai Dara | |||||
| Kampung Behrang Ulu | |||||
| Behrang Ulu | Behrang–Tanjung Malim Highway West Behrang Slim River North–South Expressway Northern Route Bukit Kayu Hitam Ipoh Kuala Lumpur Rawang | T-junctions | |||
| Behrang Ulu–Tanjung Malim | see also Behrang–Tanjung Malim Highway |