Sangeeta Kumari Singh Deo (born 3 December 1961) is an Indian politician and the wife of the titular Maharaja of Bolangir, an erstwhile princely state located in Odisha.

Her father, Amar Singh, was a younger son and therefore he inherited little, but he entered government service, serving as an officer in the IPS.

Sangeeta grew up in a middle class milieu and graduated from Delhi University with a BA in political science.

In October 1985, in a match arranged by their parents in the usual Indian way, Sangeeta was married to Kanakvardhan Singh Deo, son and heir of the former Maharaja of Patnagarh-Bolangir, an erstwhile princely state located in Odisha.

Inevitably, Kanakvardhan was drawn to politics and served for four terms as member for Patnagarh in the Odisha state assembly.