Fire outbreak in is a problem in Nigeria public buildings and it has led to loss of goods and destruction of assets. The study assessed the socio-economic impact of fire disaster among public buildings in Federal Capital Territory, Nigeria. Four hundred (400) questionnaire was administered among randomly selected respondents (public building occupants); however, 376 were returned and analysed using descriptive and inferential statistic such as frequency count and percentage. The respondents agreed that socio-economic impacts of fire disaster include reduced quality of life of the victims (57.4%), individual suffers direct physical and emotional harm from injuries and fatalities (51.1%), loss of lives (83.0%), socio-economic activities interruption (55.8%), respiratory disorder among the victims (52.6%), property damage and reduced the building value (76.3%), low patronage or desertion from the building due to fire incidents history (55.9%), property damage to the non-occupants of the building (55.3%). Conclusively, fire disaster among among public building leads to various socio-economic implications; therefore, building owners should partner with Government agency such as Fire Service for awareness programmes for their occupants, drilling about fire event and equipped their building with fire-fighting apparatus.