Keyser Township is one of fifteen townships in DeKalb County, Indiana.

Keyser Township had its start in 1876, when the Baltimore and Ohio Railroad constructed a railroad through the area.

[5] The Samuel Bevier House, Joseph Bowman Farmhouse, Breechbill-Davidson House, Brethren in Christ Church, Orin Clark House, DeKalb County Home and Barn, William Fountain House, Gump House, Edward Kelham House, Charles Lehmback Farmstead, Rakestraw House, and Henry Shull Farmhouse Inn were added to the National Register of Historic Places in 1983.

[6] According to the 2010 census, the township has a total area of 24.02 square miles (62.2 km2), of which 23.96 square miles (62.1 km2) (or 99.75%) is land and 0.05 square miles (0.13 km2) (or 0.21%) is water.

[4] The township contains two cemeteries: Calvary and Embrey.