Introduction: Every occupation is associated with one or other ill effects on health as well as oral health. Workers of the paper mill are exposed to a hazardous occupational environment, and the physically tedious work might drive them to neglect their oral health. Aim: The present study was conducted to assess the oral health status and treatment needs of paper mill workers, Namakkal, Tamil Nadu. Materials and methods: A cross-sectional descriptive survey was conducted to assess the oral health status and treatment needs of 600 paper mill workers at Namakkal. The study subjects were recruited through a simple random sampling technique. Data was collected using a questionnaire along with the World Health Organization (WHO) Oral Health Assessment Form (1997). Statistical analysis was done using SPSS 20.0 software, and the Chi-squared test was used to find out the association of age and gender with oral health. Results: The majority of the paper mill workers were males (466, 77.7%). Nearly 39% were aged 31–45 years. Dental fluorosis was found in 95 (15.8%) workers. The prevalence of dental caries was 71.5% among the workers. About 36% of workers had at least one missing tooth due to caries, and 25.8% of workers had missing teeth due to other reasons like periodontitis and trauma. Dental trauma was present in 61 workers (10.2%). Very few participants (<10%) had utilized dental services earlier, and more than half of the study population required at least one dental treatment. Conclusion: The present study population had poor oral health status with a high prevalence of dental caries. It has been observed that there was a lack of awareness toward oral health among the workers. Oral health education, along with other preventive and curative services, can be initiated by the dental health professionals to ensure optimum oral health care for the paper mill workers.