study was made of sport practice and of knowledge, attitude and practice towards sport among 1475 private secondary-school students in Dubai, United Arab Emirates (UAE) in 2004. UAE students practised sport more than non-UAE students (33.9% versus 18.7% had good levels of activity) but there was no significant difference in positive attitudes towards sport practice (87.1% and 86.2% respectively). A good level of sport (vigorous exercise ≥ 3 times per week for 20 min) was higher among males (26.0%) than females (14.7%). There was a significant association between overweight and obesity as well as tobacco smoking and low levels of sport practice. Health education intervention is needed to improve sport practice among young people.