Similar to Speech_Synthesis_Markup_Language
 - DDIT3DNA damage-inducible transcript 3
 - Deb (ファイルフォーマット)Deb (file format)
 - Deeplearning4jDeeplearning4j
 - 利用者:Deer hunter's subaccount/メモリスタ
- 利用者:Deer hunter/二輪車の動力学
 - DeletionpediaDeletionpedia
 - DESDES
 - DF-3 (ミサイル)DF-3A
 - DHLアビエーションDHL Aviation
 - DicerDicer
 - Template:DisabilityTemplate:Disability sidebar
- DishevelledDishevelled
 - 利用者:Distart
 - Distributed-queue dual-busDistributed-queue dual-bus
 - Template:Divisor classesTemplate:Divisor classes
- Djot
 - マークアップ言語Markup language
 - Template:マークアップ言語一覧Template:Document markup languages
 - Artificial Intelligence Markup LanguageArtificial Intelligence Markup Language
 - Curl (プログラミング言語)Curl (programming language)
 - Document Composition Facility
 - Document Type DefinitionDocument type definition
 - Generalized Markup LanguageIBM Generalized Markup Language
 - Graph Modelling LanguageGraph Modelling Language
 - GroffGroff (software)
 - JSON-LDJSON-LD
 - MC-B2
 - PandocPandoc