Maciejowiec is a village in the administrative district of Gmina Lubomierz, within Lwówek Śląski County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately south-east of Lubomierz, south of Lwówek Śląski, and west of the regional capital Wrocław.
Prior to 1742 it was in Habsburg Empire. Prior to 1945 it was in Germany. After World War II the region was placed under Polish administration and ethnically cleansed according to the post-war Potsdam Agreement. The native German populace was expelled and replaced with Poles.