Subreddits starting with D

Dachshund owners and fans.

A community for dads.

Fans of Daft Punk: music, news, and discussion.

Daily programming challenges.

Clips and discussion of The Daily Show.

Dallas: local discussion.

Dance of all styles.

Fans of the animated series Daria.

The Dark Souls series.

Dark Souls II: builds and help.

Help with the Dark Souls games.

Darkstep drum and bass.

Databases and database design.

Visualisations of data.

Find and share datasets.

Dating: advice and experiences.

Advice on dating and relationships.

In-depth Star Trek discussion.

Dayton, Ohio: news, events, and local discussion.

DayZ: survival stories and help.

Fans of Dragon Ball Z.

DC Comics: news and discussion.

Germany: discussion (in German).

Deadpool in comics and films.

The Dead Space series: news and discussion.

A community for Deaf and hard-of-hearing people.

Deathcore music: artists, albums, and recommendations.

Death metal bands and albums.

Fans of the anime and manga Death Note.

Debate with Christians.

Debate and questions about communism.

Debates with atheists.

Debate about religion.

Help and news for Debian Linux.

Fact-checking claims.

Working on becoming a better person.

Decluttering your home.

Deep house music: tracks, mixes, and artists.

Deep sea creatures and life in the ocean depths.

Star Trek: Deep Space Nine.

Fans of Deftones: music, news, and discussion.

Deism: belief and discussion.

Delaware: news and discussion.

News and discussion for Democrats.

Demon's Souls: help and discussion.

The demoscene: demos and the people who make them.

Democratic socialism.

Denmark: news and discussion.

Dentistry: dental school and careers.

Denton, Texas: local discussion.

Denver: news, events, and local discussion.

Denver Broncos fans.

Support for people living with depression.

Links to in-depth, insightful Reddit comments.

Design of all kinds.

Get feedback on your design work.

Get help designing a room.

Examples of great design in everyday life.

Show off and customise your computer desktop.

Des Moines, Iowa: local discussion.

Photos of desserts, cakes, and sweet treats.

Destiny: news, builds, and discussion.

Photos of destruction, disasters, and their aftermath.

Detroit: news, events, and local discussion.

Detroit Lions fans: games, news, and discussion.

Detroit Red Wings fans.

Discussion of the Deus Ex game series.

Germany: news and discussion (in German).

New Jersey Devils fans.

Discussion of the TV series Dexter.

Living with diabetes.

The Diablo series: builds, news, and discussion.

Diablo III: builds and discussion.

Diablo III strategy.

Trivia and facts about video games.

Fans of Die Antwoord: music, news, and discussion.

Digimon games, anime, and cards.

Digital painting: work and tutorials.

Dinosaurs: fossils, research, and facts.

Disability community.

Disc golf: courses, discs, and technique.

Disco music: classic tracks, artists, and edits.

Terry Pratchett's Discworld.

The Dishonored series.

Disney films and parks.

Disneyland trips and tips.

Support and advice through divorce.

Do-it-yourself projects and help.

Building your own audio gear.

The Django web framework for Python.

Djent and progressive metal.

DJing: gear, mixing, and gigs.

DJ setups, controllers, and gear.

Fans of the Dave Matthews Band.

Drum and bass music.

Dungeons & Dragons: campaigns, art, and discussion.

Doctor Who: episodes, news, and discussion.

Doctor Who jokes and memes.

Discover documentary films and discuss the subjects they explore.

Dodge owners and fans.

Los Angeles Dodgers fans.

Words and phrases that don't translate into English.

Share pictures of your dog and see others'.

Dogs: photos, care, and questions.

Photos of dogs and the trouble they caused.

Help and advice for training your dog.

The deck-building game Dominion.

Don't Starve: survival tips and discussion.

Doodles and quick drawings.

Doom metal bands and albums.

Dota 2: news, patches, and discussion.

.NET development: C#, tools, and frameworks.

For double bass players in jazz, classical, and more.

Downtempo electronic music.

Discussion of the series Downton Abbey.

The Dragon Age games: story and discussion.

The Dragon's Dogma games.

Ask artists to draw something for you.

Share drawings, practice techniques, and talk about your process.

Growing and caring for dreadlocks.

The Sega Dreamcast: games, mods, and memories.

Fans of Dream Theater.

The Dresden Files books by Jim Butcher.

For students at Drexel University.

Drifting: cars, events, and videos.

Drones and drone flying.

Drum corps: shows, corps, and members.

Drumming: technique, gear, and lessons.

Drums: playing, gear, and lessons.

Drumstep music: artists, albums, and recommendations.

Help and discussion for the Drupal CMS.

Digital signal processing.

Dual-sport motorcycles for on and off road.

Dub music: artists, albums, and recommendations.

Dubai: local discussion.

Dublin: local discussion.

Dubstep music: artists, albums, and recommendations.

Ducati motorcycles: owners and fans.

The DuckDuckGo search engine.

Fans of The Office (US).

Frank Herbert's Dune and its adaptations.

Dungeons & Dragons: campaigns and discussion.

Learning languages with Duolingo.

DVD and Blu-ray collecting.

Dwarf Fortress: forts, stories, and help for new players.