Amaliegade 12 is a historic property in the Frederiksstaden Quarter of central Copenhagen, Denmark. Count Christian Ditlev Frederik Reventlow lived in the building when he was appointed prime minister in 1797 and it has also housed the American diplomatic mission to Denmark. The law firm Moltje-Leth Advokater is now based in the building. The building was listed on the Danish registry of protected buildings and places in 1918.