Khon Kaen Wittayayon School
 Khon Kaen Wittayayon School (Thai: โรงเรียนขอนแก่นวิทยายน) is a public school located in downtown Khon Kaen Province Thailand. It admits secondary students (mathayom 1–6 equivalent to grades 7–12). Founded in 1897 as a boys' school for Khon Kaen Province it then became the first coeducational school in Khon Kaen. The school's former names were Khon Kaen (boys') School and That Wittayakhan Temple School. The first school principal was Mr. Tub Chimma.