Laurent Rossi, director of strategy and business development for Renault, will take over the motor sports unit which will be rebranded Alpine.
Austrian Wolff, 48, has overseen Hamilton's success at Mercedes following the Briton's move from McLaren in 2013. Hamilton has won six of his seven titles with the sport's all-conquering team.
Formula 1: Mercedes boss Toto Wolff thinks new rules will make it impossible for racers to match 2020 lap times
Commenting upon the Mercedes car for next season, Toto said they were right in the middle of development and doubted a quick recovery.
Formula 1: COVID impact, tweaked calendar, and scramble for third position - key moments from 2020 season
Although we saw predictable World Champions (Lewis Hamilton and Mercedes), 2020 was a largely unpredictable and unprecedented season for Formula 1. As we bring this year to a close, let’s revisit some of the most surprising moments from F1.
Formula 1 2020: Haas confirm Nikita Mazepin for next season after concluding inquiry into driver's conduct
He will line up alongside Mick Schumacher, the son of the seven-time world champion Michael Schumacher, in an all-rooky partnership.
What makes Mercedes’ period of dominance unique is the sheer gap they’ve opened up to the rest of the field - on an average, their qualifying advantage was about 0.7 seconds over their closest rivals.
Formula 1 2020: Lewis Hamilton continuing a ‘no-brainer’, but no rush over new contract, says Mercedes’ Toto Wolff
Hamilton said after last week's season-ending Abu Dhabi Grand Prix that he wanted to get his deal "tied up before Christmas".
Frank Williams, who built the Williams team into a dominant Formula One force in the 1980s and 1990s, is in a stable condition after being admitted to hospital, the team announced.
A jubilant Brown said McLaren had "a great year" after Lando Norris and his Ferrari-bound team-mate Carlos Sainz finished fifth and sixth in the Abu Dhabi Grand Prix.
Formula 1 2020: Racing Point's Sergio Perez bids tearful farewell after engine failure wrecks Abu Dhabi GP
"It is sad to be leaving the team this way," said Perez, who said he retained hopes of staying in Formula One with Red Bull, if they chose him as a replacement for Alex Albon.
"I plan to be here next year, I want to be here next year," Lewis Hamilton told reporters after the race.
On his final lap, slowing down round the Yas Marina Circuit, Vettel surprised many by singing an Italian song about Ferrari on the team radio system.
"Physically? Massively," Lewis Hamilton said, when asked directly about how much COVID-19 had hit him.
Max Verstappen finished 16 seconds ahead of Valtteri Bottas and 18.4 clear of world champion Lewis Hamilton as Red Bull enjoyed a rare and significant success over both Mercedes cars.
The Dutch driver edged Valterri Bottas in second and the Finn's Mercedes team-mate Lewis Hamilton, who is racing for the first time since winning the championship after contracting coronavirus, in third for Sunday's Grand Prix.
Formula 1 2020: Red Bull's Max Verstappen fastest ahead of teammate Alexander Albon in final practice for Abu Dhabi GP
Verstappen led Albon by .5 seconds and Renault driver Daniel Ricciardo by .63. Ricciardo is competing in his last race for Renault before joining McLaren next year and has two third-place finishes this season.
Formula 1 2020: Valtteri Bottas back on top ahead of Lewis Hamilton as Mercedes rule practice sessions
Bottas clocked a best lap in 1min 36.276sec to outpace Hamilton, back after a bout of Covid-19 that forced him to miss an F1 race for the first time, by 0.203 seconds.
The seven-time champion, who missed last weekend’s action-packed Sakhir Grand Prix due to a bout of Covid-19, admitted he needed a few laps to settle in again.
Camilleri has suffered from a severe bout of Covid-19 and only recently left the hospital to continue recovering at home.
Hamilton missed last Sunday's Sakhir GP, but the FIA and Mercedes both confirmed that he had passed a number of negative COVID-19 tests after completing a 10-day quarantine period in Bahrain