Abstract-Harbor workers have risk of being affected by hazards that possibly develop into occupational diseases. The objective of this research was to describe hazards that could possibly develop into occupational diseases in harbor community. This research used a cross-sectional approach and descriptive method. The sample was 94 respondents in work areas of Kantor Kesehatan Pelabuhan (KKP), Kelas I, Surabaya, and was selected with random sampling technique. The instrument used was questionnaire. Data analysis was performed with descriptive technique. Potential hazards that could cause occupational diseases were workplace temperature, noise and poor lighting, while noncompliance with PPE protocols could increase the risk of hazard exposure. Control over potential hazards should be performed and compliance with PPE protocols should be improved.