Farmsum (Dutch pronunciation: [ˈfɑr(ə)msʏm]; Gronings: Faarmsom [ˈfaːmsɔm]) is a village in the Dutch province of Groningen.

The village was first mentioned in the 10th or 11th century as "de Fretmarashem", and means "settlement of Fretmar".

[3] Farmsum was built on several house terps (artificial living hills) in the early middle ages.

In 1814, it was destroyed by the French under Napoleon who had taken Delfzijl and wanted a clearer view on the countryside for defence.

[5] Huis te Farmsum was an estate built in the early 13th century.