Calw may refer to: Calw, a town in Baden-Württemberg, Germany Landkreis Calw, a district in Baden-Württemberg the family line of the counts of Calw
Name bearers from the same line: Pope Victor II (c. 1018 – 28 July 1057), born Gebhard, Count of Calw, Tollenstein, and Hirschber Erlung, Count of Calw (–1106), Bishop of Würzburg (1104-1106) Gottfried von Calw (d 1131), Count of Calw, Count-Palatine of bei Rhein (1113–1126) Uta of Calw (~1115/20–1197), founder of All Saints' Abbey in the Black Forest, wife of Welf VI.
Other bearers of the name: Ulrich Rülein von Calw (1465–1523), mining engineer and mayor of Freiberg, Saxony