Helianthus annuus L., commonly known as the sunflower, is a well-known annual plant from the Asteraceae family, widely cultivated for its seeds, oil, and ornamental value. Beyond its economic importance, sunflower flowers possess a variety of bioactive phytochemicals that contribute to their potential medicinal applications. In this study, Helianthus annuus flower petals were subjected to phytochemical analysis to identify and quantify their therapeutic compounds. Phytochemical extraction was conducted using hot, continuous, and sequential extraction through a Soxhlet apparatus with solvents arranged in ascending order of polarity. The qualitative analysis revealed the presence of diverse phytochemicals, including alkaloids, flavonoids, tannins, saponins, glycosides, triterpenoids, phenols, steroids, coumarins, cardiac glycosides, and phytosterols. Quantitative analysis indicated that the highest concentration of alkaloids was observed in chloroform and ethanol extracts (650 mg/g), while flavonoids were most concentrated in ethyl acetate and methanol extracts (300 mg/g). Phenols and tannins were predominantly found in ethyl acetate and aqueous extracts (220 mg/g). These findings highlight the significant bioactive composition of Helianthus annuus flowers, suggesting their potential as a source of natural antioxidants and therapeutic agents for pharmaceutical and nutraceutical applications.