Rehburg-Loccum (German: [ˌʁeːbʊʁk ˈlɔkʊm] ⓘ) is a town 50 km north west of Hanover in the district of Nienburg in Lower Saxony, Germany.

A museum was established showing the history of hydrotherapy in the former health resort Bad Rehburg which was used by members of the House of Hanover.

The best-known institution of the city is the Cloister of Loccum (founded in 1163) hosting various classical concerts throughout the year.

The Evangelic Academy of Loccum organises congresses, colloquiums and several workshops about questions and conflicts of politics, culture, sciences and religion and ethics.

A social club focussing on customs, costumes, and heritage preservation runs a small local museum about the history of Rehburg.