Udham Singh Nagar is a district located in the Indian state of Uttarakhand. It was created in 1995 after being carved out of the Nainital district. The district is named after the Indian freedom fighter, Shaheed Udham Singh, who was born in the area.

Udham Singh Nagar is known for its agricultural produce, particularly rice, wheat, and sugarcane. The district has several sugar mills and rice mills, and is a major contributor to the state's economy. The district is also home to the Pantnagar Agricultural University, one of the leading agricultural universities in the country.

The district is well-connected to other parts of the state and the country through road and rail networks. The nearest airport is located in Pantnagar, which serves as an important hub for flights to and from Delhi and other major cities.

Udham Singh Nagar also has several tourist attractions, including the Jim Corbett National Park, which is a popular destination for wildlife enthusiasts, and the Giri Sarovar, a holy lake surrounded by temples and scenic hills.