The British Academy Video Games Award for Performer in a Supporting Role is an award presented annually by the British Academy of Film and Television Arts (BAFTA) in honor of the best supporting performance featured in a game "from voice artistry through to motion capture".^[1]

BAFTA has honoured video game performances since the 8th British Academy Video Games Awards ceremony in 2012, with Mark Hamill winning the inaugural award for his performance as the Joker in Batman: Arkham City.^[2] From 2012 to 2019, performers in both leading and supporting roles were considered together in the merged category of British Academy Games Award for Performer but, as of the 16th British Academy Games Awards, during a reconfiguration of categories, BAFTA announced that the Performer award would be split into both Leading and Supporting categories.^[3]

The inaugural winner in the Supporting category was Martti Suosalo for his role as Ahti the Janitor in Remedy Entertainment's Control.^[4] Troy Baker has received the most nominations, with two, one for his role as Higgs in Death Stranding and one for portraying Joel in The Last of Us Part II.

The current holder of the award is Andrew Wincott for his role as Raphael in Baldur's Gate 3, who won at the 20th British Academy Games Awards in 2024.

In the following table, the years are listed as per BAFTA convention, and generally correspond to the year of game release in the United Kingdom.