|Big Brother 21|
|Series Run||October 6th 2019-November 25th, 2019|
|Returnees|| Andria (BB22)|
|Previous Season||Big Brother 20|
|Next Season||Big Brother 22|
Big Brother 21, also known as Big Brother 21: Full Throttle, is the twenty first season of The Big Brother ORG Wiki.
|Tara (Host)||Val (Host)||Brandon (Host)||Morgan (Host)||Tyler (Producer)|
- Big Brother House: Houseguests are added to a Secret Facebook Group and Facebook Group Chat together with the hosts. This is where they are informed of events happening in the game. Events such as competitions, twists, etc. are posted in a forum in the Big Brother Wikia site.
- Head of Household
- Power of Veto
- Expulsion: Includes the "Three Strike Rule" for voting and challenge submissions.
- Jury: Consists of the final seven evicted houseguests.
- Fan Favorite Award
- Backwards Week: Week 1 will be played in reverse. The nominees will be chosen first, then the Power of Veto Competition, then the Head of Household Competition, and then the eviction.
- Roadkill Competition: A competition that the Houseguests can compete in to anonymously add a third nominee to the block.
- Returning Evicted Houseguest: In Week 5, the first 4 evicted houseguests competed in the HoH competition to try to win their way back into the game. Erin won and reentered the game, but she failed to become the new HoH.
- Viewing Lounge Juror: Due to a shortage on the jury, the Viewing Lounge acted as a seventh juror. The Viewing Lounge could ask their own questions to the finalists, and submitted their own voting form, with the most votes overall receiving the Lounge's one collective jury vote. The Viewing Lounge for Peter to win the game.
|Day 1||Day 10||15th||0||0||0||0|
|Day 1||Day 10||14th||1||0||0||0|
|Day 1||Day 14||13th||0||0||8||0|
|Day 1||Day 21||12th||0||0||6||0|
|Day 1||Day 28||11th||1||0||5||0|
|Day 1||Day 35||10th||0||1||6||0|
|Day 1||Day 42||9th||0||1||0||0|
|Day 1||Day 49||8th||0||0||5||1|
|Day 1|| Day 7|
|Day 1||Day 58||6th||0||1||0||3|
|Day 1||Day 63||5th||2||2||3||0|
|Day 1||Day 70||4th||3||2||3||0|
|Day 1||Day 77||3rd||1||1||2||1|
|Day 1||Day 78||2nd||0||1||0||0|
|Day 1||Day 78||1st||2||1||2||1|
|Head of Household||Johnny||Sharon||Simon||Christina||Andria||Sharon||Christina||Sharon||Ashley||Andria||Ashley||N/A|
| Power of|
1 of 1
8 of 8
6 of 7
5 of 6
6 of 7
4 of 5
3 of 4
2 of 3
1 of 1
1 of 1
- Not counting Big Brother 20, this is the first season since Big Brother 5 that featured more females than males.
- Also excluding Big Brother 20, this is the first time that the jury is entirely comprised of female players.
- This is the first season where no non-American players reach the jury phase.
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