Landess is an unincorporated community and census-designated place (CDP) in Washington and Van Buren townships, Grant County, Indiana, in the United States.

[4] A post office was established at Landess in 1884, and remained in operation until it was discontinued in 1996.

Interstate 69 forms the southeastern edge of the Landess CDP, but there is no access to the highway at this point.

The closest interchanges are Exit 264 (Indiana State Road 18), 4 miles (6 km) to the south, and Exit 273 (State Road 5), 7 miles (11 km) to the northeast.

According to the U.S. Census Bureau, the Landess CDP has an area of 1.4 square miles (3.6 km2), all of it land.