U Lok (, ) is a tambon (subdistrict) of Lamduan District, in Surin province, Thailand. In 2026, it had a population of 3,793 people.
History U Lok's old locals were from Sangkha district, who speak Khmer as their native language. It became a tambon in 1994. The first kamnan was Mr.Subin Phra-ngam.
Administration Central administration The tambon is divided into eleven administrative villages (mubans). No. Name Thai Population Phu Yai Ban1.Takhianตะเคียน307Prasit Temsuk2.Khok Kohโคกเกาะ588Somphong Bunlert3.Nong Kan Jarnหนองกันจารย์200Suwan Samnuek4.Chok Taiโชกใต้458Suthit Suphisak5.Malu Jrungมะลูจรุง473Chatri Phanpong6.U Lokอู่โลก495Chamnean Bunlusuk7.Phet Jangwaเพชรจังวา313Prasit Sawaengsit8.Nong Pringหนองปรีง282Pongsap Sapmak9.Non Klangโนนกลาง232Jumroen Jarat10.Mueang Thongเมืองทอง211Jira Sanglai11.Buonratบวรรัตน์234Prida Umhaporn
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