Helsingin yhteislyseo (HYL) is a school in Kontula, Helsinki Finland consisting of a lower secondary school and an upper secondary school with over 50 teachers and 700 students in total. The school was founded in 1908 and it is privately maintained by Maanviljelyslyseo (Agricultural Lyceum). The school celebrated its 100th birthday in 2008. Helsingin yhteislyseo and Lapinlahden yhteislyseo relocated to a new building and to its present location on the Rintinpolku street in Kontula in 1971. The two schools joined to operate under the same name Helsingin yhteislyseo from 1974 onward.