Maciejowice [mat͡ɕɛjɔˈvit͡sɛ] is a town in Garwolin County, Masovian Voivodeship, in east-central Poland.

For centuries, Maciejowice was part of the Land of Stężyca, which belonged to Lesser Poland's Sandomierz Voivodeship.

The first local village, mentioned in documents, is Kochow (one kilometer south of Maciejowice), which was founded in 1155.

The town at that time belonged to the Castellan of Sandomierz, Stanislaw Maciejowski, and with the royal permission, it was allowed to organize fairs.

In September 1939, during the Invasion of Poland, two large units of the Polish Army (13th Infantry Division and Wilenska Cavalry Brigade) evacuated eastwards on a wooden bridge at Przewoz.