Oldambt is a municipality with a population of 38,129 in the province of Groningen in the Netherlands. It was established in 2010 by merging the municipalities of Reiderland, Scheemda, and Winschoten. It contains the city of Winschoten and these villages:
Bad Nieuweschans
Beerta
Blauwestad
Drieborg
Finsterwolde
Heiligerlee
Midwolda
Nieuw-Beerta
Nieuwolda
Nieuw-Scheemda
Oostwold
Scheemda
't Waar
Westerlee.
The mayor was Pieter Smit of D66.