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In this work we report preparation, structural and dielectric analyses of iron oxide added in hydroxyapatite bioceramic (Ca 10 (PO 4 ) 6 (OH) 2 -HAP). Hydroxyapatite is the main mineral constituent of teeth and bones with excellent biocompatibility with hard and muscle tissues. The samples were prepared through a calcination procedure associated with dry high-energy ball milling process with different iron concentrations (1, 2⋅5 and 5 wt%). The dielectric analyses were made measuring the sample impedance in the frequency range 1 kHz-10 MHz, at room temperature. The relative permittivity of the ceramics, at 10 MHz, are between 7⋅13 ± 0⋅07 (1 wt%) and 6⋅20 ± 0⋅11 (5 wt%) while e″ are between 0⋅0795 ± 0⋅008 (1 wt%) and 0⋅067 ± 0⋅012 (5 wt%). These characteristics were related to the sample microstructures studied by X-ray diffraction and SEM.