Rotki [ˈrɔtki] is a village in the administrative district of Gmina Drohiczyn, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland.
During German occupation of Poland, the Nazis set up a stone quarry in Rotki for the purpose of slave labor by the Polish Jews from the Łomża Ghetto. About three hundred persons worked in it, before they were shipped to Auschwitz for extermination in November 1942.