Data collected on 371 Balami, 291 Uda and 355 West African Dwarf (WAD) sheep in Nigeria were used to characterize the three breeds for 18 morphometric traits. The sheep belonged to two sexes (575 male: 439 females) and two age groups (≤23-month and 24 to 35-month). They were obtained from traditionally managed flocks and markets in 4 states of Nigeria. The morphometric traits measured were Ear Length, Force Leg Length, Rear Leg Length, Body Length, Shoulder Width, Neck Circumference, Hearth Girth, Rump Height, Head Length, Head Width, Horn Length, Rump Width, Rump Length, Tail Length, Wither Height, Horn Base Circumference, Testicle Width, and Testicle Length. Data collected were subjected to Analysis of Variance appropriate for a 3x2x2 design. The results showed that breed, sex and age and their interactions significantly (p<0.05) influenced the morphometric traits. Balami sheep was significantly (p<0.05) higher than Uda and WAD sheep in morphometric traits. WAD sheep had the lowest values (p<0.05) for morphometric traits. Male sheep was superior (p<0.05) to female sheep in morphometric traits. 24 to 35-month old sheep were higher (p<0.05) than ≤23-month sheep in the measured morphometric traits. It is concluded that detailed breed description of Nigerian sheep can be done using morphometric traits. However, such description would be influenced by age, sex and their interaction with the breeds under consideration. 1495655400.php