Manganese is a versatile and essential chemical element plays a crucial role in various industrial applications, including steel production, where it acts as a vital alloying agent to enhance the strength and durability of steel. Awareness between citizens should be informed about encouraged to engage with local health authorities for regular monitoring and preventive measures Aim: This study aimed to assess citizens' awareness regarding Sinai manganese factory hazards at Abu Zenima city at South Sinai governorate. Research design: A descriptive design was used in this study. Setting: Home visit in at Abu Zenima City in South Sinai Governorate-Egypt. Sample: A convenience sample composed of 375 citizens. Tool of data collection: Two tools, 1st tool included four parts, 1st part: Socio-demographic characteristic, 2nd part: Medical history, 3rd part: Citizens' knowledge about manganese and its risks, and 4th part: Citizens' reported practices regarding manganese factory hazards, 2nd tool: Observational checklist for healthy home precautions regarding protection from manganese factory hazards. Results: 45.1 % of the studied citizens had poor knowledge, while 14.6 % of them had good knowledge. 75.6 % of studied citizens had unsatisfactory reported practice and 41.7 % of them had satisfactory home healthy precautions about risk prevention. Conclusion: There is statistically significant relation between citizens' sociodemographic characteristics, their knowledge, reported practices regarding manganese and its risks. Also, there were highly statistically significant positive correlation between the studied citizen's total knowledge, total reported practices and home healthy precautions. Recommendations: Provide health education program for citizens about manganese and its risks.