St. Joseph's Institution International (often referred to as "SJI International" or "SJII") is an independent co-educational Lasallian Catholic international school at Thomson Road in Novena, Singapore. It comprises an elementary and high school. The elementary school students range in age from 4-12 while in the High School the students are aged 12 18. The high school was founded in 2006 and the elementary school opened in 2008.