Manjusri Secondary School (MJR) is a co-educational government-aided secondary school in Ubi, Singapore.

In 2009, the school moved to a new campus at 20 Ubi Avenue 1 which was officially opened on 22 April 2010.

[citation needed] James Cook University Singapore currently occupies the old campus and continues to use its buildings.

The annual school anniversary concert was held in April 2012 at the LASALLE College of the Arts in conjunction of the school's 30th anniversary.

In November, the school organised a homecoming dinner for past-and-present staff and students, with Education Minister Heng Swee Keat being the guest-of-honour.