Aims: Despite the need to recruit and retain more blood donors, some are deferred from donating to ensure their safety and that of recipients is maintained. Examination of donor deferrals provides insights into how donor procurement strategies can be improved. Provision of safe and adequate supply of blood products is a major public health issue globally. As a result provision of safe blood should be ensured through proper donation procedures and safe transfusion. to assess the donor deferral rates and reasons for deferral among donors at Namibia blood transfusion services (NAMbts) from 01st April 2012 to 31st March 2015. Methods: A retrospective study was conducted by reviewing the deferred donor records from 1 April 2012 to 31 March 2015. results: Out of 50,074 prospective donors, 4302 (8.6%) donors were deferred. the deferral rates for females and males were 74.0% and 26.0%, respectively. Of the deferred donors