THE is a three-letter acronym that may refer to:

• Technische Hogeschool Eindhoven (former name of Eindhoven University of Technology), a Dutch university of technology
  • THE multiprogramming system, a computer operating system which was developed there under Edsger Dijkstra
• THE Tunnel, Trans Hudson Express Tunnel
• The Hessling Editor, a text editor modeled on the VM/CMS editor XEDIT
• Times Higher Education, a British magazine which focuses on Higher Education in the UK and elsewhere.
• The Human Equation, an album by progressive metal musical project Ayreon
• The Humane Environment (now known as Archy), designed by human-computer interface expert Jef Raskin
• Transhiatal esophagectomy, a type of surgery
• Texas hold'em a type of poker game
• Total Healthcare expenditure
• Total Home Entertainment

The is the only definite article in English, denoting person(s) or thing(s) already mentioned, under discussion, implied, or otherwise presumed familiar to the listener or reader. The is the most commonly used word in the English language, accounting for 7% of all words.

The... is the debut extended play by South Korean boyband JYJ (then using the name Junsu/Jejung/Yuchun), a group formed of three of the five members of TVXQ. It was released in Japanese language under Rhythm Zone, the band's former Japanese label as a part of TVXQ. The release was commercially successful, reaching number one on Oricon's weekly albums chart.