Ater Assembly constituency (formerly, Attair) is one of the 230 Vidhan Sabha (Legislative Assembly) constituencies of Madhya Pradesh state in central India.

[1] This constituency came into existence in 1951, as one of the 79 Vidhan Sabha constituencies of the erstwhile Madhya Bharat state.

[2] Ater (constituency number 9) is one of the 5 Vidhan Sabha constituencies located in Bhind district.

This constituency covers the entire Ater tehsil, part of Bhind tehsil and Phuphkalan nagar panchayat.

[3] Ater is part of Bhind Lok Sabha constituency along with seven other Vidhan Sabha segments, namely, Bhind, Lahar, Mehgaon and Gohad in this district and Sewda, Bhander and Datia in Datia district.