Obergum is part of the town Winsum (Groningen, Netherlands) that lies north of the Winsumerdiep.

Originally it was a separate village.

Winsum and Obergum have been connected since 1808 by the bridge De Boog (The Arch).

The village is built around a wierde (hill) on which a 13th-century Romanesque church stands, called the St. Nicholas Chapel.