Big Brother 2025, also known as Big Brother 15 is the fifteenth season of the German reality television series Big Brother. The show began airing on 24 February 2025 with a live launch on Sat.1 and Joyn and will end after 50 days on 14 April 2025. It is the second regular season of Big Brother to be predominantly aired on a streaming platform in Germany and sixx will air daily live spin-off shows from Monday-Friday. Marcel Schiefelbein was announced the winner in his third participation of Big Brother in the final and won the 50.000⬠cashprize after he became the Runner-up in Big Brother 8 & 9. It's also the third time, that an "Non Day 1 housemate" has won Big Brother.
On 3 February 2025 it was announced that Jochen Schropp, Elena Gruschka, Melissa Khalaj & Jochen Bendel will be presenting "Big Brother - Die Show" on sixx.
As in season 14, a live-feed will accompany the daily shows.
On 9 January 2025, Joyn released the new eye logo, which is a variation of the previous year's eye. A multi-colored ring, representing each housemate, replaces the green ring formerly used.
The theme song of the show's intro and outro is "Leb!", the original theme song from season 1.
The official pictures of the new Big Brother house were released on 21 February 2025. It will mostly feature the same furniture previously used on season 12 of Promi Big Brother.