Kielmansegg

Kielmansegg is the name of an old German noble family. Notable people with the surname include:
 * Count Erich Kielmansegg (1847–1923), Austrian statesman
 * Friedrich von Kielmansegg (1768–1851), German officer
 * Johann von Kielmansegg (1906–2006), German general staff officer
 * Sophia von Kielmansegg, Countess of Darlington (1675–1725), German-born courtier