Telomere length maintenance and pubertal timing are complex biological processes influenced by genetic and environmental factors. Recent findings suggest a potential connection between the mechanisms governing telomere length and the onset of puberty. The Hippo signaling pathway, well-known for its role in regulating organ size and tissue balance, has emerged as a potential mediator in linking these processes. This review explores the current understanding of telomere dynamics in sexual maturation and the impact of environmental cues, with a focus on the integration of the Hippo pathway as a central player. We discuss recent discoveries indicating a link between the Hippo pathway and telomere length regulation, as well as evidence supporting its involvement in pubertal timing. Furthermore, we explore how environmental factors such as diet and temperature may influence telomere length and pubertal timing, potentially through modulation of the Hippo pathway. Finally, we propose future research directions to uncover the precise mechanisms through which the Hippo pathway integrates signals from telomere dynamics, pubertal timing, and environmental cues, shedding light on the complex interplay between genetics and environment in sexual maturation. Understanding these mechanisms could lead to developing new strategies in conservation genetics and production management in animals as well as therapeutics targeting age-related diseases and reproductive disorders in humans.