Mansfeld is a town in Saxony-Anhalt, Germany.

Mansfeld may also refer to:

• 79138 Mansfeld, a minor planet
• Colloredo-Mansfeld, a German Princely family based in Austria
• House of Mansfeld, a princely German house that took its name from the town of Mansfeld in present-day Saxony-Anhalt
• Mansfeld Castle, a castle in Saxony-Anhalt, Germany
• Mansfeld Land, a region of Saxony-Anhalt, Germany
• Mansfeld-Südharz, a district in Saxony-Anhalt, Germany
• Palais Mansfeld or La Fontaine Castle, a former castle in Clausen, Luxembourg

• Dorothea of Mansfeld (1493–1578), German noblewoman and healer
• Miroslav J. Mansfeld (1912–1991), a Czech World War II flying ace
• Agnes von Mansfeld-Eisleben (1551–1637), Countess of Mansfeld
• Ernst von Mansfeld (c. 1580–1626), general of the Thirty Years' War
• Gebhard I von Mansfeld-Vorderort (c. 1525–1562), Archbishop and Prince-Elector of Cologne
• Karl von Mansfeld (1543–1595), German general during the Cologne War and the Ottoman-Habsburg wars
• Peter Ernst I von Mansfeld-Vorderort (1517–1604), Governor of the Spanish Netherlands
• Philipp von Mansfeld (1589–1657), troop commander during the Thirty Years' War
• Hieronymus Karl Graf von Colloredo-Mansfeld (1775–1822), Austrian corps commander during the Napoleonic Wars

• Mansfelder Land (disambiguation)
• Mansfeldt Findlay (1861–1932), British diplomat
• Mansfield (disambiguation)
• Mansveld (disambiguation)