Trinity Lutheran School (TLS) is a private Lutheran school in Bend, Oregon, United States. It is owned and operated by Trinity Lutheran Church of the Lutheran Church – Missouri Synod. TLS serves approximately 645 students from pre-kindergarten through high school.

Trinity opened in 1959, offering only kindergarten. In 1994 the school moved from the church property at the base of Pilot Butte onto a 23-acre (93,000 m) parcel on Butler Market Road. Having added pre-school through 5th grade in the original building, the new school building allowed TLS to add grades through grade eight. After completion of a new gymnasium, the church also moved to the property. A donation of modular class buildings allowed TLS to open a high school in 2006. Beginning with only five students, The high school graduated its first class in 2012.

Total enrollment in preschool through grade 12 is approximate 645 students.

Trinity Lutheran Church has plans to add a new middle school and high school building, and a new sanctuary.

Trinity Lutheran is fully accredited through both National Lutheran Schools Accreditation and AdvancED,

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