No. Mel Gibson is not single. He has been dating his girlfriend, Rosalind Ross, for over a decade. Mel Gibson’s girlfriend is Rosalind Ross, a 34-year-old woman from Aptos, California.
The "Braveheart" star has been linked to writer and director Rosalind Ross since 2014 and the duo share a whopping 34-year age gap. Gibson was born in 1956, while Ross was born in 1990.