Since ancient times, medicinal plantsMedicinal plants and their natural products have been a central part of therapeutic practices across diverse cultures. There is an in-depth discussion in this chapter of the therapeutic applications and pharmacological properties of these plants, highlighting their significance in modern medicine in terms of their therapeutic uses. There are a wide range of bioactive compoundsBioactive compounds found in medicinal plantsMedicinal plants, including alkaloids, flavonoids, terpenoids, and polyphenols, which exhibit various pharmacological effects, such as anti-inflammatory, antioxidant, anticancer, antimicrobial, and cardioprotective properties. This chapter provides an overview of the diverse therapeutic uses and pharmacological properties of medicinal plantsMedicinal plants and their natural products. Medicinal plants have been integral to human health for centuries. They offer a wide variety of therapeutic compounds that have contributed to modern medicine. Almost all plant parts contain bioactive compounds that provide therapeutic benefits. The most important and commonly used medicinal plantsMedicinal plants of Trans Himalayan region are Adhatoda vasica, Arnebia euchroma, Carum carvi, Capparis spinosa, Clematis tibetana, Dactylorhiza hatagirea, Dracocephalum heterophyllum, Ephedra gerardiana, Geranium wallichianum, and Hippophae rhamnoides. These Trans Himalayan medicinal plantsMedicinal plants and their extracts are prominent and commonly utilized as remedies for various pharmacological properties. The significance of this review is to comprehensively provide a detailed account of medicinal plantsMedicinal plants, their major bioactive compounds, and their pharmacological efficacies. This is for further drug discovery and action for mankind’s welfare.