Brian Francis Johnson (born 5 October 1947) is an English singer and songwriter. In 1980, after the death of Bon Scott, he became the third lead singer of the Australian rock band AC/DC. He and the rest of the band were inducted into the Rock and Roll Hall of Fame in 2003. In April 2016, he temporarily stepped away from the band during the Rock or Bust World Tour due to hearing problems. In September 2020, AC/DC officially confirmed that Johnson along with fellow band-mates Phil Rudd and Cliff Williams had returned in August 2018 to record the band's 2020 album, Power Up.

Johnson was one of the founding members of the rock band Geordie formed in Newcastle upon Tyne in 1971. After a few hit singles, including UK Top 10 "All Because of You" (1973), the band split up in 1978. Following the death of Bon Scott on 19 February 1980, Johnson was asked to audition for AC/DC. AC/DC guitarists and founders Angus and Malcolm Young initially reached out to Brian remembering when Bon had been impressed with him after seeing him perform with Geordie. His first album with AC/DC, Back in Black, became the second-best-selling album of all time, according to most estimates. The Guardian ranked the successful transition to Johnson at No. 36 on their list of 50 key events in rock music history.Johnson is known for his distinctive singing voice and strong Geordie accent. In July 2014, he was awarded an honorary degree of Doctor of Music by Northumbria University in the city of Newcastle in recognition of his significant contribution to the music industry.