Lustenau, town, western Austria, on the Rhine River, just west of Dornbirn. First mentioned in 887, it later became an imperial free city (until 1803) and passed to Austria in 1814. Lustenau is a customs station on the Swiss border. It has a well-known embroidery industry and manufactures textiles and metal products, including drilling tools. Lustenau is also an important market and service centre for the surrounding rural region. Pop. (2006) 20,518.