This study was designed to assess the effect of age on haematological parameters in ostrich (Struthio camelus). Ostriches maintained under standard managemental conditions at Post Graduate Research Institute in Animal Sciences, Kattupakkam is used for this study. Ostriches of aged 2, 4, 6, 8, 10, 12 and 24 – 36 months of age were selected. Blood sample were collected from 42 birds of mentioned age groups. 3 ml of blood were collected from each bird during the cooler parts of the day. 1ml of blood was taken in vials containing 0.5 mg of EDTA (Ethylene Diamine Tetra Acetic Acid) and was later used to estimate Haemoglobin concentration (Hb), Packed Cell Volume (PCV), Total Erythrocytes Count (TEC) and Total Leucocytes Count (TLC) and Differential Count (DC). The study revealed no significant differences among various blood parameters. The findings are comparable with works done by other scientists from other parts of the world.