Dhubaria Union () is a union of Nagarpur Upazila, Tangail District, Bangladesh. It is situated 6 km south of Nagarpur and 30 km south of Tangail city.
According to Population Census 2011 performed by Bangladesh Bureau of Statistics, The total population of Dhubaria union is 12,760. There are 2,958 households in total.
The literacy rate of Dhubaria Union is 47.4% (Male-52.4%, Female-43.1%).
There is a direct bus service from Dhaka to Dhubaria via Manikganj District called "Village Line". The buses start from Gabtoli Bus Terminal, Mirpur, Dhaka. Last stoppage of this bus service is Dhubaria Bazar, Nagarpur, Tangail.