Rajnagar may refer to:
Places
- Rajnagar Upazila a subdivision in Maulvibazar District, Bangladesh
- Rajnagar Bihar, a town in Madhubani District, Bihar, India
- Rajnagar, Chhatarpur, a town in Madhya Pradesh, India
- Rajnagar, Birbhum, a town in West Bengal, India
- Rajnagar, Tripura - an assembly constituency under Tripura West (Lok Sabha constituency)
- Rajnagar, Ghaziabad- a posh colony in ghaziabad district, Uttar Pradesh, India.
Electoral constituencies
- Rajnagar, Birbhum (Vidhan Sabha constituency)
- Rajnagar, Madhubani (Vidhan Sabha constituency)
Read more about Rajnagar: See Also