Maartje is a Dutch feminine given name, a diminutive of the names Martina and Marthinus. People with the name include:
Maartje Boudeling (born 1939), Dutch chef
Maartje Goderie (born 1984), Dutch field hockey player
Maartje Köster (born 1975), Dutch cricketer
Maartje Nevejan, Dutch filmmaker
Maartje Offers (1891–1944), Dutch classical singer
Maartje Paumen (born 1985), Dutch field hockey player
Maartje Scheepstra (born 1980), Dutch field hockey player
Maartje van Putten (born 1951), Dutch politician
Maartje Verhoef (born 1997), Dutch fashion model
