Triam Udom Suksa Pattanakarn School (Thai: โรงเรียนเตรียมอุดมศึกษาพัฒนาการ, commonly abbreviated as Triampat, is a high school located in Bangkok, Thailand. It admits lower-secondary and upper-secondary students (mathayom 1–6, equivalent to grades 7–12). Founded in 1978 as a campus school of Triam Udom Suksa School, Bangkok, Thailand which is preparatory school for Chulalongkorn University.