| Box Width: | 350px |
| Sher Shah–Kot Addu Branch Line | |
| Start: | Sher Shah Junction |
| End: | Kot Addu Junction |
| Stations: | 10 |
| Owner: | Pakistan Railways |
| Operator: | Pakistan Railways |
| Linelength: | 74km (46miles) |
Sher Shah–Kot Addu Branch Line (Urdu: {{Nastaliq|شیر شاہ–کوٹ ادو فرعی ریلوے خط) is one of several branch lines in Pakistan, operated and maintained by Pakistan Railways. The line begins at Sher Shah Junction on the Karachi–Peshawar Railway Line and ends at Kot Addu Junction on the Kotri–Attock Railway Line. The total length of this railway line is 74km (46miles) with 10 railway stations.
The line serves as an important link between the Karachi–Peshawar Railway Line (Main Line 1) and Kotri–Attock Railway Line (Main Line 2).