Anaitara Union () is a union of Mirzapur Upazila, Tangail District, Bangladesh. It is situated southwest of Mirzapur and southeast of Tangail, the district headquarters.
According to the 2011 Bangladesh census, Anaitara Union had 5,657 households and a population of 24,912. The literacy rate (age 7 and over) was 53.5% (male: 58.2%, female: 49.6%).