Harbour is a state assembly constituency in Chennai district of the Indian state of Tamil Nadu.

It falls under Chennai Central Lok Sabha constituency during national elections.

[3] Most successful party: DMK (ten times).

It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu, in India.

18 Harbour Assembly constituency is composed of Ward 23-30, 43-44, 48-49 and 80 of Greater Chennai Corporation.