Thane Lok Sabha constituency (formerly, Thana Lok Sabha constituency) is one of the 48 Lok Sabha (parliamentary) constituencies of Maharashtra state in western India.

[1] At present, after the implementation of the Presidential notification on delimitation on 19 February 2008, Thane Lok Sabha constituency comprises six Vidhan Sabha (legislative assembly) segments.

These segments are: In 1952 and 1957, this Thane area contributed two members to Lok Sabha.

In 2008, the Delimitation Commission of India split the seat into Thane and Kalyan seats.