| Lok Sabha constituency | |
| Constituency details | |
|---|---|
| Country | India |
| Region | East India |
| State | Bihar |
| Assembly constituencies | Katihar Kadwa Balrampur Pranpur Manihari Barari |
| Established | 1957 |
| Reservation | None |
| Member of Parliament | |
| 18th Lok Sabha | |
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| Incumbent | |
| Party |  INC |
| Alliance | I.N.D.I.A. |
| Elected year | 2024 |
| Preceded by | Dulal Chandra Goswami |
Katihar Lok Sabha constituency is one of the 40 Lok Sabha (parliamentary) constituencies in Bihar state in eastern India.