Veliki Brat 2007 is the second season of the television reality show Veliki Brat, the Serbian, Bosnian and Montenegrin joint version of Big Brother.

The second season started on 22 September 2007 and was supposed to run until its scheduled finale on 5 January 2008, however, immediately following the death of three of the evicted housemates—Stevan Zečević, Zorica Lazić and Elmir Kuduzović, the producers of the show, Emotion and B92, decided to abandon the competition on 29 December 2007, a week before the planned finale.

On 29 December, the producers called off the tournament out of respect to the three former players, which first led to the seven remaining players leaving the Veliki Brat house, and then the broadcast that night announced the abandonment of the tournament. All seven players split the winner's prize money together. After the statement, archive footage of the three deceased former housemates was shown.

There were no statements on what would be done with the amount of €20,000 earned by two housemates as a part of their on-air secret tasks. This amount was supposed to be given as a humanitarian donation to charity organizations or individuals in need.

On 28 December 2007, Stevan Zečević, Zorica Lazić and Elmir Kuduzović, who had all been evicted earlier in the season, were killed in a car crash. The crash occurred when their Citroën C4, driven by Kuduzović, ran off the road near the town of Ušće, Serbia. The car reportedly skidded off the road due to excessive speed on a turn, flipped onto its roof and landed in the Vukodraž River. The crash happened on Obrenovac-Šabac road, which was icy at the time. A fourth person in the car, Vladimir Sarić, who was not a member of this season's cast, was injured in the crash. Another car carrying fellow evicted housemates, Tanja Obradović and Jelena Žeželj, was also traveling in front of them at the time but was not involved in the crash. Stevan Zečević was born in 1983 and was from Novi Sad, Serbia. Zorica Lazić was also born in 1983 and was from Zemun, a city near Belgrade. Elmir Kuduzović came from the city of Tuzla in Bosnia and Herzegovina, and was born in 1981.

All five housemates in the two vehicles were en route to an official appearance on behalf of the production company to promote the planned upcoming season finale of the program. The remaining Veliki Brat housemates were informed of the deaths off-camera.

Serbian television station B92 and production company Emotion announced in a press statement issued on 29 December that they had decided to end the season early due to the tragic deaths of Zečević, Lazić and Kuduzović. The show had been previously scheduled to end its season on 5 January 2008. All five former housemates had been scheduled to return to the Veliki Brat house on New Year's Eve as part of the season finale.

The abandonment was reportedly the second time that a Big Brother season had been cancelled anywhere in the world. The first being Big Brother: The Boss, the Arabian version of Big Brother. In 2020, two worldwide versions of Big Brother were abandoned mid-season when the second season of the Bigg Boss Malayalam in India and the eighth season of Big Brother Canada ended because of COVID-19 pandemic restrictions in India and Canada. In May 2021, the eighth season of the Kannada language version of Bigg Boss in India was suspended for the same reason; after a two-month suspension, production resumed July 2021 with the sub-title "Second Innings."