Throughout human history, aging or growing old has been approached from various religious and philosophical perspectives. When tradition, culture, medicine, psychology, sociology, and especially transhumanism—a topic of much discussion and research today—are added, we can see that these perspectives diversify even further. In most religions, long life is regarded as a gift from God, and showing respect to the elderly is important. In theistic religions (Judaism, Christianity, and Islam), aging is considered a natural part of the lifespan. In religions such as Hinduism and Buddhism, it is seen as a significant stage on the path to spiritual development and salvation. Philosophically, aging is generally considered an inevitable but natural phase of life, with the elderly regarded as experienced and wise. Although there are different approaches in Ancient Greek philosophy, Stoicism, and especially in modern philosophy such as existentialism, aging is not explicitly labeled as evil. Transhumanism, on the other hand, is a movement that aims to accelerate human evolution and overcome biological limitations. From the transhumanist perspective, aging is a condition that limits human potential and should be eliminated through technology; hence, it is viewed as an “evil” or a problem to be overcome. In some philosophies, since aging is accepted as a natural process of life, it is considered neither good nor evil. Religion, philosophy, and transhumanism assign different meanings and attitudes toward aging. Considering this, is aging a neutral condition that should be naturally accepted, a blessing or good bestowed by God, or a disease or evil that humans must cope with? In philosophy, evil is categorized into natural, moral, and metaphysical. In this sense, can aging be considered a natural and metaphysical evil? Humans are beings with limitations, and some physical restrictions and diseases caused by aging can be seen as ontological evils. In this context, transhumanism does not accept aging as a natural condition; instead of merely preventing or curing the biological process of aging, it rejects the biological human condition altogether and sees the transition from biological to bionic humans as reasonable. Therefore, it can be said that transhumanism holds a different view and does not share the same perspective as other schools of thought. In this study, religious, philosophical, and transhumanist views on aging will be comparatively examined. Fundamental texts related to these fields will be reviewed to provide a general evaluation. Since this topic touches every human life, the study is expected to encompass philosophical, religious, legal, cultural, and scientific dimensions and offer a different perspective for future research in this area.