The Oblong Box may refer to:

• "The Oblong Box" (short story), an 1844 short story by Edgar Allan Poe
• The Oblong Box (film), a 1969 horror film starring Vincent Price

• Du Xian (news anchor)
• Du Xiao
• Du Xinwu
• Dux (music)
• Dux Records
• DUY
• Duy
• Duya
• Duya, Ayeyarwady
• Duya language
• Duya, Mon
• Duyanggang Township
• Du Yanqiu
• Duydokh
• Duydokh-e Olya
• Duydukh-e Olya
• Duyen Hai District
• Duyen Hai Power Station
• Duyff
• Duyfor Mudstone
• Duygu Bal
• Duygu Cete
• Duygulu, Kozluk
• Duygun Yarsuvat
• Duygu Çete