Hosur is a state assembly constituency in Krishnagiri district in Tamil Nadu, India. Its State Assembly Constituency number is 55. It consists of a portion of Hosur taluk. It forms a part of Krishnagiri Lok Sabha constituency for national elections to the Parliament of India. It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu, in India.
|winner=Dravida Munnetra Kazhagam |loser=All India Anna Dravida Munnetra Kazhagam |swing= 6.07