兰道（Landau in der Pfalz）是德国莱茵兰-普法尔茨州的一个直辖市，同时也是南魏恩斯特拉瑟县的首府。总面积82.96平方公里，总人口43957人，其中男性20802人，女性23155人（2011年12月31日），人口密度530人/平方公里。

Landau or Landau in der Pfalz (pop. 41,821) is an autonomous (kreisfrei) town surrounded by the Südliche Weinstraße ("Southern Wine Route") district of southern Rhineland-Palatinate, Germany. It is a university town (since 1990), a long-standing cultural centre, and a market and shopping town, surrounded by vineyards and wine-growing villages of the Palatinate wine region. Landau lies east of the Palatinate forest, Europe's largest contiguous forest, on the German Wine Route.