Zomergem () is a town and former municipality located in the Flanders and in the province of East Flanders, in Belgium. The municipality comprises the towns of Oostwinkel, Ronsele and Zomergem proper. On 1 January 2018, Zomergem had a total population of 8,466. The total area is 38.78 km<sup>2</sup>.
Effective 1 January 2019, Waarschoot, Lovendegem and Zomergem were merged into the new municipality of Lievegem.