Documentary Movies & TV Shows Online Free

Stream the best Documentary movies and TV shows free on OnionPlay in HD. Browse 1,201 Documentary titles — no signup, no subscription required. Updated daily with the newest Documentary releases.

The Man Will Burn - Season 1 Eps3
The Man Will Burn - Season 1 Documentary
Surviving Earth - Season 1 Eps7
Surviving Earth - Season 1 Documentary
Secrets Declassified with David ..Season 2 Eps16
Secrets Declassified with David ..Season 2 Documentary
Who Do You Think You Are? - Season 23 Eps6
Who Do You Think You Are? - Season 23 Documentary, Family
Dateline: Secrets Uncovered - Season 17 Eps8
Dateline: Secrets Uncovered - Season 17 Crime, Documentary
Fake or Fortune? - Season 14 Eps2
Fake or Fortune? - Season 14 Documentary, Reality
This Old House - Season 24 Eps9
This Old House - Season 24 Documentary, Reality
The UnXplained - Season 8 Eps13
The UnXplained - Season 8 Documentary
Cold Case Forensics - Season 2 Eps1
Cold Case Forensics - Season 2 Crime, Documentary
Late Night Law - Season 1 Eps9
Late Night Law - Season 1 Documentary
The Killer Among Us - Season 1 Eps10
The Killer Among Us - Season 1 Crime, Documentary
World War II with Tom Hanks - Season 1 Eps20
World War II with Tom Hanks - Season 1 Documentary
Dark Side of the Ring - Season 7 Eps5
Dark Side of the Ring - Season 7 Documentary
Ben Fogle: New Lives in the Wild - Season 14 Eps2
Ben Fogle: New Lives in the Wild - Season 14 Documentary, Reality
Snapped - Season 36 Eps14
Snapped - Season 36 Crime, Documentary
Australian Story - Season 31 Eps21
Australian Story - Season 31 Documentary, News
The Real Murders of Atlanta - Season 4 Eps3
The Real Murders of Atlanta - Season 4 Crime, Documentary
On Patrol: Live - Season 5 Eps5
On Patrol: Live - Season 5 Crime, Documentary
How Did They Build That? - Season 4 Eps9
How Did They Build That? - Season 4 Documentary
Murder 24/7 - Season 3 Eps3
Murder 24/7 - Season 3 Crime, Documentary
Paramedics on Scene - Season 7 Eps5
Paramedics on Scene - Season 7 Documentary
The Food That Built America - Season 7 Eps14
The Food That Built America - Season 7 Documentary
Toronto Airport Uncovered - Season 1 Eps8
Toronto Airport Uncovered - Season 1 Documentary
The Secret of Skinwalker Ranch - Season 7 Eps11
The Secret of Skinwalker Ranch - Season 7 Documentary, Reality

Frequently Asked Questions

What are the best Documentary movies on OnionPlay?

Browse the grid below — titles are sorted by popularity and rating. Use the Filter to narrow by year, country, or sub-genre.

Are new Documentary movies added regularly?

Yes. Our Documentary catalog updates daily as new films are released theatrically and on streaming.

Can I watch Documentary TV shows here too?

Yes — both Documentary movies and TV series are listed together. Use the type filter at the top to show only movies or only TV.