Rimavská Sobota (Slovak pronunciation: [ˈrimawskaː ˈsɔbɔta] ⓘ; Hungarian: Rimaszombat, German: Großsteffelsdorf) is a town in southern Slovakia, in the Banská Bystrica Region, on the Rimava river.

The town, along with the district lies in the Rimava river valley in the Slovenské rudohorie mountains, in the Southern Slovak Basin.

There are two protected areas close to the town in the district, Cerová vrchovina to the south and Muránska planina National Park to the north.

The first written record about Rimavská Sobota was in 1268 as Rymoa Zumbota and belonged to the Archbishop of Kalocsa, who owned the land from 1150 to around 1340.

During the Socialist Czechoslovakia, food industry developed here; for example, a sugar factory was established in 1966 and a meat processing plant in 1977.

Rimavská's hollow basin is an important agricultural area, where almost all crops can be grown, including the more thermophilic ones, such as sugar beet, wheat, rye, vegetable, tobacco, vine, lucerne, and corn.

Rimavská Sobota's tourist industry is as yet largely undeveloped, due to a lack of infrastructure, although the area possesses natural, historical, and cultural potential.

According to the 2001 census, there were 25,088 people living in the town, the majority being Slovaks (59.28%), with a significant minority of Hungarians (35.26%), a small percentage of Roma (3.01%) and others.