The objective of the current study was to assess the morphological and histological characteristics of the sheep olfactory bulb, six samples (n = 6) were used. Three samples for anatomical observation of olfactory bulb were record in adult sheep which involved the morphological study (stance, rapport, mass, length, and diameter). The width of the bulb was (7.28± 0.98mm), the length of the olfactory bulb in sheep was (30.5±1.28 mm), the diameters of the olfactory was (9.067-+0.01453). The olfactory bulbs were fixed in 10% formalin solution and subjected to standard histological processing, which included Mallory and Hematoxylin and Eosin staining. The olfactory bulb, located in the forebrain of vertebrates, has an elongated form with just a rostral ventral rough surface and a creamy color. It receives neurological input regarding odors identified by cells in the nasal cavity. The four separate layers that may be distinguished histologically in the sheep olfactory bulb are the olfactory nerve layer, the glomerular layer, the mitral cells layer, and the granule cells layer.