Thalheim may refer to:

• Thalheim, Lower Austria, cadastral community of Kapelln, Sankt Pölten-Land district, Lower Austria
• Thalheim, Styria, suburb in Pöls municipality, former Judenburg District, Styria
• Thalheim bei Wels, town in Wels-Land district, Upper Austria.

• Thalheim, Saxony, town in Erzgebirgskreis district, Saxony
• Thalheim, Saxony-Anhalt, former municipality now in Bitterfeld-Wolfen, Anhalt-Bitterfeld district, Saxony-Anhalt
• Thalheim (Hesse), constituent community of Dornburg, Hesse, Limburg-Weilburg district, Hesse
• Thalheim (Oschatz), townland of Oschatz, Nordsachsen district, Saxony
• Thalheim, former name of Fraunberg, Bavaria, Erding district, Bavaria
• Thalheim (Sigmaringen), village in Leibertingen municipality, Sigmaringen district, Baden-Württemberg

• Thalheim (1938–45) German name for Dziurdziewo, village in Nidzica County, Warmian-Masurian Voivodeship

• Thalheim, German name for Daia village of Roșia, Sibiu, commune in Sibiu County

• Thalheim, Aargau, municipality in Brugg district, Aargau
• Thalheim an der Thur, municipality in Andelfingen district, Zürich

• Barbara Thalheim (born 1947), German singer and songwriter
• Bernhard Thalheim (born 1952), German computer scientist
• Hans-Günther Thalheim (1924–2018), German linguist and writer
• Robert Thalheim (born 1974), German stage and film director and screenwriter

• "Thalheim", song on 1999 album Dead Bees on a Cake by David Sylvian

• Talheim (disambiguation)