Objective: It is aimed to examine the personal hygiene behaviors of the students attending in three primary schools with different socio-economic levels in Sivas Province Center. Method: The study which was planned as a cross sectional study was carried out in three primary schools with different socio-economic levels, between 23 May and 3 June 2005. All of the students attending in 5-8 class degrees of these schools were included in the study. A questionnaire containing 42 questions about socio-demographic features of families and personal hygiene behaviors was performed, and personal hygiene scores were graded. Results: After toilet 96.1%, before meals 90.1%, after meals 90.8%, after playing 92.9% of the students were washing their hands with soap and water. The percentage of students who never brush their teeth was 2.7%. 98.2% of them were bathing at least once in a week. The study showed that 65.3% of students were washing their feet every day; 38.4% of them were changing their socks every day; 84.6% of them were cutting their fingernail, 82.7% of them were using toilet paper. Washing teeth longer than two minutes, having bath more than two times in a week, changing socks every day, using toilet paper, flushing the toilet behaviors were found to be statistically higher in schools with high socio-economic level. Conclusion: It has been recognized that persons must be made conscious in early ages and education programs must be arranged in early terms of school life, in order to develop personal hygiene behaviors which have importance for protection of health.