The Best True Crime Subreddits in 2026

True crime communities on Reddit research cases in detail and sometimes surface overlooked information. The best ones are strictly moderated to respect victims.

These are the best true crime subreddits in 2026.

Published . Member counts are approximate; activity checked September 25, 2026.

The best true crime subreddits

  1. 1
    r/UnresolvedMysteries4.3M+ membersVery active · 100+ posts/monthStats →

    Best for: Unsolved cases

    Well-researched write-ups of unsolved mysteries.

  2. 2
    r/TrueCrime3.3M+ membersVery active · 100+ posts/monthStats →

    Best for: True crime

    True crime news and discussion.

  3. 3
    r/TrueCrimeDiscussion1.2M+ membersVery active · 100+ posts/monthStats →

    Best for: Case discussion

    In-depth case discussions.

  4. 4
    r/UnsolvedMysteries510K+ membersActive · 84 posts/monthStats →

    Best for: Unsolved Mysteries show

    Discussion around the TV series and cases.

  5. 5
    r/serialkillers620K+ membersVery active · 100+ posts/monthStats →

    Best for: Serial killer cases

    Research on serial killer cases.

  6. 6
    r/RBI780K+ membersVery active · 100+ posts/monthStats →

    Best for: Crowdsourced investigation

    Reddit Bureau of Investigation — help solving everyday mysteries.

  7. 7
    r/TrueCrimePodcasts970K+ membersVery active · 100+ posts/monthStats →

    Best for: True crime podcasts

    Podcast recommendations and discussion.

  8. 8
    r/coldcases37K+ membersActive · 94 posts/monthStats →

    Best for: Cold cases

    Discussion of cold cases.

  9. 9
    r/Thetruthishere480K+ membersVery active · 100+ posts/monthStats →

    Best for: Personal encounters

    First-hand stories.

  10. 10
    r/television17M+ membersVery active · 100+ posts/monthStats →

    Best for: True crime TV

    Documentary series discussion.

Want your own True Crime subreddit? Claim a dead one.

The subreddits above are thriving — but for every active community there are dozens of abandoned ones with thousands of subscribers and no active moderators. Reddit lets you take these over through its official r/redditrequest process. DeadSubs scans Reddit in real time to find dead true crime subreddits you can claim.

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Find dead true crimesubreddits →

Looking specifically for abandoned communities to take over? See our guide to dead movies & tv subreddits or read the step-by-step claiming guide.

Frequently Asked Questions

What is the best true crime subreddit?

r/UnresolvedMysteries for detailed write-ups and r/TrueCrime for news and discussion.

Where can I find true crime podcast recommendations?

r/TrueCrimePodcasts.

What is r/RBI?

The Reddit Bureau of Investigation — a community that helps solve everyday mysteries, not a law-enforcement body.

Can I claim a dead true crime subreddit?

Yes. Case- and podcast-specific subreddits are often abandoned. If all human mods have been inactive for 60+ days, request it via r/redditrequest. DeadSubs finds them.

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Best TV Show Subreddits

The best TV show subreddits in 2026 — TV news, show recommendations, streaming, and the biggest fandom communities for current and classic series.

Best Interesting Subreddits

The most interesting subreddits to follow in 2026 — fascinating facts, cool guides, satisfying videos, science, history, and curiosities.

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