Mohammadabad is a constituency of the Uttar Pradesh Legislative Assembly,[1] and a segment of Ballia Lok Sabha constituency, covering the city of Mohammadabad (also spelled Muhammadabad) in the Ghazipur district of Uttar Pradesh, India.

It should not be confused with the assembly segment Muhammadabad-Gohna which falls under Ghosi Lok Sabha seat in Mau district.

Mohammadabad is one of five assembly constituencies in the Ballia Lok Sabha constituency.

Since 2008, this assembly constituency is numbered 378 amongst 403 constituencies.