Nagbari Union () is a union of Kalihati Upazila, Tangail District, Bangladesh. It is situated 22 km north of Tangail on the bank of the Bangshai River.
According to Population Census 2011 performed by Bangladesh Bureau of Statistics, The total population of Nagbari union is 31294. There are 7866 households in total.
The literacy rate of Nagbari Union is 39.6% (Male-43.7%, Female-35.9%).