SK
Public
Si Khwan Mueang School
โรงเรียนศรีขวัญเมือง
Ban Dung, Udon Thani
Public school (Kindergarten 2–Grade 9) under the Office of the Basic Education Commission in Ban Dung, Udon Thani.
SO
Public
Si O Sinlapasat School
โรงเรียนสีออศิลปศาสตร์
Kumphawapi, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Kumphawapi, Udon Thani.
ST
Public Non-formal education
Si That District Learning Encouragement Center
ศูนย์ส่งเสริมการเรียนรู้ระดับอำเภอศรีธาตุ
Si That, Udon Thani
District-level centre of the Department of Learning Encouragement offering non-formal and informal education in Si That, Udon Thani.
SP
Public
Soephloe Phitthayakhom School
โรงเรียนเสอเพลอพิทยาคม
Kumphawapi, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Kumphawapi, Udon Thani.
SC
Public
Sotsueksa Changwat Udon Thani School
โรงเรียนโสตศึกษาจังหวัดอุดรธานี
Mueang Udon Thani, Udon Thani
Public special-education school (Kindergarten 2–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
SS
Public
Srithatpittayakom School
โรงเรียนศรีธาตุพิทยาคม
Si That, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Si That, Udon Thani.
SS
Public
Sum Sao Phitthayakhan School
โรงเรียนสุมเส้าพิทยาคาร
Phen, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Phen, Udon Thani.
SS
Public
Sum Sao Witthaya School
โรงเรียนสุมเส้าวิทยา
Phen, Udon Thani
Public school (Kindergarten 2–Grade 9) under the Office of the Basic Education Commission in Phen, Udon Thani.
TT
Public
Tat Thong Phitthayakhom School
โรงเรียนตาดทองพิทยาคม
Si That, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Si That, Udon Thani.
TC
Public
Te Cha Phaibun (2) School
โรงเรียนเตชะไพบูลย์ (2)
Nam Som, Udon Thani
Public school (Kindergarten 2–Grade 6) under the Office of the Basic Education Commission in Nam Som, Udon Thani.
TW
Public
Thairat Witthaya 92 (Chumchon Na Kha) School
โรงเรียนไทยรัฐวิทยา ๙๒ (ชุมชนนาข่า)
Mueang Udon Thani, Udon Thani
Public school (Kindergarten 2–Grade 9) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
TK
Public
Thap Kung Pracha Nukun School
โรงเรียนทับกุงประชานุกูล
Nong Saeng, Udon Thani
Public school (Kindergarten 1–Grade 9) under the Office of the Basic Education Commission in Nong Saeng, Udon Thani.
TD
Public
That Don Tum School
โรงเรียนธาตุดอนตูม
Nong Han, Udon Thani
Public school (Kindergarten 2–Grade 6) under the Office of the Basic Education Commission in Nong Han, Udon Thani.
TN
Public
That Noi Ko Samran School
โรงเรียนธาตุน้อยก่อสำราญ
Thung Fon, Udon Thani
Public school (Kindergarten 2–Grade 6) under the Office of the Basic Education Commission in Thung Fon, Udon Thani.
TP
Public
That Phon Thong Witthayakhom School
โรงเรียนธาตุโพนทองวิทยาคม
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
TN
Public
Thom Na Ngam Witthayakhom School
โรงเรียนทมนางามวิทยาคม
Non Sa-at, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Non Sa-at, Udon Thani.
TF
Public Non-formal education
Thung Fon District Learning Encouragement Center
ศูนย์ส่งเสริมการเรียนรู้ระดับอำเภอทุ่งฝน
Thung Fon, Udon Thani
District-level centre of the Department of Learning Encouragement offering non-formal and informal education in Thung Fon, Udon Thani.
TF
Public
Thung Fon Phatthana Suksa School
โรงเรียนทุ่งฝนพัฒนศึกษา
Thung Fon, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Thung Fon, Udon Thani.
TF
Public
Thung Fon Witthayakhan School
โรงเรียนทุ่งฝนวิทยาคาร
Thung Fon, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Thung Fon, Udon Thani.
TP
Public
Triamudomsuksa Pattanakan Udonthani School
โรงเรียนเตรียมอุดมศึกษาพัฒนาการ อุดรธานี
Ban Phue, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Ban Phue, Udon Thani.
UP
Public
Udon Phatthanakan School
โรงเรียนอุดรพัฒนาการ
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 10–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
UP
Public
Udon Phichai Rak Phitthaya School
โรงเรียนอุดรพิชัยรักษ์พิทยา
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
UP
Public
Udon Phitthayanukun 2 School
โรงเรียนอุดรพิทยานุกูล 2
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
UT
Public
Udon Thamma Nu Son School
โรงเรียนอุดรธรรมานุสรณ์
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
UT
Public
Udon Thani Phitthayakhom School
โรงเรียนอุดรธานีพิทยาคม
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
UT
Public Higher education
Udon Thani Rajabhat University
มหาวิทยาลัยราชภัฏอุดรธานี
Mueang Udon Thani, Udon Thani
Public Rajabhat university in Udon Thani; originally a teacher-training college.
UW
Public
Udon Watthana Nuson School
โรงเรียนอุดรวัฒนานุสรณ์
Ban Phue, Udon Thani
Public school (Kindergarten 2–Grade 6) under the Office of the Basic Education Commission in Ban Phue, Udon Thani.
US
Public
Udonphatthana Suksa School
โรงเรียนอุดรพัฒนศึกษา
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
US
Public
Udonpittayanukoon School
โรงเรียนอุดรพิทยานุกูล
Mueang Udon Thani, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Mueang Udon Thani, Udon Thani.
WY
Public
Wan Yai Prachakhom School
โรงเรียนหว้านใหญ่ประชาคม
Phibun Rak, Udon Thani
Public school (Kindergarten 2–Grade 6) under the Office of the Basic Education Commission in Phibun Rak, Udon Thani.
WS
Public Non-formal education
Wang Sam Mo District Learning Encouragement Center
ศูนย์ส่งเสริมการเรียนรู้ระดับอำเภอวังสามหมอ
Wang Sam Mo, Udon Thani
District-level centre of the Department of Learning Encouragement offering non-formal and informal education in Wang Sam Mo, Udon Thani.
WS
Public
Wang Sam Mo Witthayakhan School
โรงเรียนวังสามหมอวิทยาคาร
Wang Sam Mo, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Wang Sam Mo, Udon Thani.
YW
Public
Yangkon Wit School
โรงเรียนยางโกนวิทย์
Ban Phue, Udon Thani
Public school (Kindergarten 1–Grade 9) under the Office of the Basic Education Commission in Ban Phue, Udon Thani.
YP
Public
Yingyuat Phitthayanukun School
โรงเรียนยิ่งยวดพิทยานุกูล
Sang Khom, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Sang Khom, Udon Thani.
YT
Public
Yung Thong Phitthayakhom School
โรงเรียนยูงทองพิทยาคม
Na Yung, Udon Thani
Public secondary school (Grade 7–Grade 12) under the Office of the Basic Education Commission in Na Yung, Udon Thani.
