Gudiyatham or 'Gudiyattam' is a state assembly constituency in Tamil Nadu, India. Its State Assembly Constituency number is 46. It comprises portions of the Gudiyattam and Vaniyambadi taluks and is a part of Vellore Lok Sabha constituency for national elections. The seat is reserved for candidates from the Scheduled Castes. It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu in India.