According to World Health Organization (WHO), “hygiene refers to conditions and practices that assistance to keep up wellbeing and avoid the spread of disease. Personal hygiene includes those practices performed by a person to care of one’s bodily well- being, through cleanliness. A Cross sectional descriptive study was conducted in primary school of Hussain Abad of Lahore. The instrument use for the data collection was adopted questioner and convenient sampling technique was used. Study included 119 primary school children most of them were males (55.4%), the majority were rural resident (88.7%) with their age ranged between 5-12 years and median age 10 years. More than three quarters of the children (77.1%) knew the requirement of personal hygiene. On the other hand more than half of them had a special towel and comb. About two thirds of children (65.4%) had good to moderate knowledge with nearly three quarters (73.6%) had positive attitudes and more than half (55.4%) had good practice. There was a moderate positive correlation between knowledge score with both the attitude and practice scores. Male and older children had a significant better knowledge, attitude and practice than female and younger ones. Residence had no significant effect on children knowledge, attitude and practice. Preschool children knowledge, attitudes, and practices about personal hygiene were deficient in some aspects.