Halbert Township is one of six townships in Martin County, Indiana, United States.

As of the 2020 census, its population was 1,545 and it contained 711 housing units.

[2] According to the 2010 census, the township has a total area of 52.37 square miles (135.6 km2), of which 51.92 square miles (134.5 km2) (or 99.14%) is land and 0.44 square miles (1.1 km2) (or 0.84%) is water.

[4] The township contains these five cemeteries: Acre, Baxter, Elliott, Hawkins and Union Chapel.