Lütau is an Amt ("collective municipality") in the district of Lauenburg, in Schleswig-Holstein, Germany. Its seat is in Lauenburg/Elbe, itself not part of the Amt.

The Amt Lütau consists of the following municipalities (population in 2005 between brackets):

1. Basedow (678)
2. Buchhorst (163)
3. Dalldorf (353)
4. Juliusburg (184)
5. Krukow (196)
6. Krüzen (337)
7. Lanze (407)
8. Lütau (677)
9. Schnakenbek (846)
10. Wangelau (220)

53°25′59″N 10°33′00″E / 53.433°N 10.550°E / 53.433; 10.550