微管组织中心（英语：Microtubule organizing center）是存在于真核细胞内的一种结构，微管在该处聚合。

微管组织中心有两个主要功能：

微管组织中心可供形成微管核，在细胞中可以使用免疫组织化学染色法观测γ-微管蛋白显影。在动物细胞中，最重要的两个微管组织中心包括与纤毛结合或存在于特定上皮组织细胞间连接的基体以及和纺锤体形成有关的中心体。

The microtubule-organizing center (MTOC) is a structure found in eukaryotic cells from which microtubules emerge. MTOCs have two main functions: the organization of eukaryotic flagella and cilia and the organization of the mitotic and meiotic spindle apparatus, which separate the chromosomes during cell division. The MTOC is a major site of microtubule nucleation and can be visualized in cells by immunohistochemical detection of γ-tubulin. The morphological characteristics of MTOCs vary between the different phyla and kingdoms. In animals, the two most important types of MTOCs are the basal bodies associated with cilia and the centrosome associated with spindle formation.