Yuknoom Yich'aak K'ahk', also known as Yich'aak K'ahk', was a significant figure in the dynastic history of the Maya city-state of Calakmul, located in present-day Mexico. His ascension to the throne on April 3, 686, occurred during a time of intense political maneuvering among various Maya polities, including Tikal, another major city-state. The dynamics of power were often maintained through strategic marriages and alliances, which were crucial for sustaining influence and military power.

Calakmul, known for its impressive architecture and vast ceremonial centers, was one of the leading powerhouses in the Maya region, often rivaling Tikal. The political landscape was characterized by complex relationships, and Yuknoom Yich'aak K'ahk's reign marked his family's continuation in this milieu. He is often associated with a series of monumental constructions and inscriptions, which served both to commemorate his rule and assert the city's power.

The significance of Yuknoom Yich'aak K'ahk's ascension lies in the subsequent consolidation of power that followed rules from previous reigning kings. His reign is noted for the integration of local governance and extended influence throughout the region, showcasing his capacity for diplomacy and military prowess. New alliances and possible territorial expansions can be traced back to this turning point in Calakmul's history, which exemplified the ongoing rivalries and cooperation among the Maya city-states in the Classic period.