Taraxacum officinale (dandelion), a flowering perennial herb of the family "Asteraceae," native to Eurasia, shows the cosmopolitan distribution. Titled "King of weeds" in literature, the plant has been used as a traditional botanical remedy to treat various bacterial infections and hepatobiliary problems. Taraxacum officinale is used as food, beverages, desserts, and a biomonitoring agent. Phytochemistry of the plant shows diverse compounds like flavonoids, terpenoids, triterpenoids, sesquiterpene lactones, sesquiterpenoid phytoalexin, phenols, free sterols, coumarins, saponins, flavones, steroids, and amino acids. The plant possesses diverse pharmacological activities, including anti-oxidant, anti-inflammatory, chemotherapeutic, hepatoprotective, hypolipidemic, anti-atherogenic, hypoglycemic, immuno-modulation, anti-bacterial, anti-viral, diuretic, and gastrointestinal. This review will describe the phytochemistry, properties, and pharmacology of Taraxacum officinale.