Geraniol is an acyclic isoprenoid monoterpene that is biosynthesised by a large number of aromatic plants. It is widely used in cosmetics, household products and pharmaceuticals, because of its low toxicity and environmentally-friendly profile. An increasing demand for the compound has encouraged research into alternative synthetic routes, and great efforts are still aimed to increase the compound yield using a variety of strategies. Geraniol is proven to exhibit various biological activities, including antitumor, anti-inflammatory, anti-oxidant, antimicrobial, hepatoprotective, cardioprotective and neuroprotective effects. This review discusses some of the most important uses of geraniol.