Horns in 64 male gazelles (Gazella subgutturosa marica) (40 live males and 24 dead males) were examined and followed up. The number of rings of horns every year was determined and compared with dentition profiles and birth records, which were bred in government and private protectorates in Anbar province, Iraq, for the period between 2010 and 2020. Results show male gazelles are born without horns. At the first six months of age, three rings will appear in each horn. Male gazelles, when they reach one year old, will have nine horn rings. After the ninth rings, we can count three rings for each year, respectively, so in 2nd year olds we can count 12 rings, in 3rd year olds 15 rings, in 4th year olds 18 rings, and in 5th year olds 21 rings. The results of this study indicate that there is a relationship between age and the number of horn rings in Gazella subgutturosa males, and we can use this to determine the age.