Ticks (Acari: Ixodida) are important blood- feeding ectoparasites acting as vectors of serious diseases of humans and animals. The camel tick, Hyalomma dromedarii is infesting camels and its control is very important for prevention of tick- borne diseases. This study evaluated the adulticidal toxicity of olive oil against H. dromedarii males and engorged females using the adult immersion test. Mortalities, the number of hatched eggs, hatchability%, weight of engorged females, and egg weight were recorded. The morality% of olive oils against male H. dormidarii 12 and 15 days post treatments (PT) reached 50 and 83.33%, respectively. Its lethal concentrations (LC) values were calculated (LC₅₀ and LC₉₅ values PT for 12 days were 12.715 and 46.386%, respectively). The lethal time values expressed as LT₅₀ and LT₉₉ after male treatment with 25% were 5.161 and 22.007 days, respectively. Olive oil adversely affected the reproductive potential of H. dromedarii engorged females as 25% PT, the number of hatched eggs, hatchability%, weight of engorged females, and egg weight were 2.83±2.31, 32.7, 52.50±2.88 g, and 0.27±0.27 g, respectively. It is recommended to apply olive oil as a safe control tool against H. dormidarii and it could be implemented in integrated- tick control strategies