C(sp<sup>3</sup>)–H functionalization methods have been widely employed in many organic transformations such as cyclization reactions, heterocycle synthesis, cross‐coupling protocols, and photochemical transformations. Among these transformations, cyclization reaction through C(sp<sup>3</sup>)–H functionalization offers a direct route to convert simple linear substrates to complex products. There are three modes of utilizing C(sp<sup>3</sup>)–H bonds in cyclization reactions including single, double, and dual C(sp<sup>3</sup>)–H functionalization. As the most challenging mode, dual C(sp<sup>3</sup>)–H functionalization refers to converting two separate C(sp<sup>3</sup>)–H bonds in one molecule into desired C–Z bonds which can be employed in cyclization reactions. Cyclization reaction <i>via</i> dual functionalization of C(sp<sup>3</sup>)–H can be classified based on the C(sp<sup>3</sup>)–H reactivities. Therefore, these reactions can be categorized into three classes based on the types of C(sp<sup>3</sup>)–H bonds including activated‐activated, activated‐unactivated, and unactivated‐unactivated C(sp<sup>3</sup>)–H bonds. Most published reports for cyclization reactions <i>via</i> dual C(sp<sup>3</sup>)–H functionalization involve activated‐activated C(sp<sup>3</sup>)–H bonds. However, the number of reported papers on the other two classes has been growing. This review focuses on the dual C(sp<sup>3</sup>)–H functionalization protocols used for cyclization reactions and categorizes the published papers based on the types of C(sp<sup>3</sup>)–H bonds.