Greendale Secondary School
 Greendale Secondary School (abbreviation: GDLSS; Simplified Chinese: 绿苑中学) is a secondary school located in Punggol in the north-eastern part of Singapore.Greendale Secondary School started as a new school in January 2006. In 2010 Greendale Secondary School represented the North-East district by hosting the launch site for the YOG torch relay in day 3 of the Singapore leg.There is also a primary school that has the same name just opposite the school.