西奥多·卡鲁扎（Theodor Franz Eduard Kaluza，1885年11月9日－1954年1月19日）出生于德国西里西亚奥波莱。是德国数学家及物理学家，因为他的卡鲁扎-克莱因理论使领域方程序卷入5维的空间而闻名。

Theodor Franz Eduard Kaluza (9 November 1885, Wilhelmsthal, today part of Opole in Poland – 19 January 1954, Göttingen) was a German mathematician and physicist known for the Kaluza–Klein theory involving field equations in five-dimensional space. His idea that fundamental forces can be unified by introducing additional dimensions re-emerged much later in string theory.