In the world, ธเดช (ธเดช 
, Tadech ) is a rare dominantly male, but infrequently feminine first name. The given name ธเดช is characteristic of South-eastern Asia, particularly Thailand, where it is a rare mostly boy's, but uncommonly girly name. Much less frequently, ธเดช is the last name as well as the forename.
ตังใจ, สักจันทร์, เสประโคน, ชนาเทพาพร, เอมสวัสดิ์, สรรสิริกุล, สุขอนันต์, ทวีวุฒิชัย, and โพธิ์ศรี