Thethaitangar is a village in the Thethaitangar CD block in the Simdega subdivision of the Simdega district in the Indian state of Jharkhand.

Thethaitangar is located at 22°30′51″N 84°30′46″E / 22.5143°N 84.5129°E / 22.5143; 84.5129

In the area presented in the map alongside, "the landscape is formed of hills and undulating plateau" in the south-western part of the Chota Nagpur Plateau. About 32% of the district is covered with forests (mark the shaded portions in the map.) It is an overwhelmingly rural area with 92.83% of the population living in the rural areas. A major portion of the rural population depends on rain-fed agriculture (average annual rainfall: 1,100-1,200 mm) for a living.

Note: The map alongside presents some of the notable locations in the district. All places marked in the map are linked in the larger full screen map.

There is a police station at Thethaitangar.

The headquarters of Thethaitangar CD block are located at Thethaitangar village.

According to the 2011 Census of India, Thethaitangar had a total population of 4,423, of which 2,163 (49%) were males and 2,260 (51%) were females. Population in the age range 0–6 years was 736. The total number of literate persons in Thethaitangar was 2,630 (71.33% of the population over 6 years.

(*For language details see Thethaitangar block#Language and religion)