The Birmingham-born hitmakers saw off competition from Iron Maiden and Led Zeppelin to take 45 per cent of the votes in a survey of more than 3,600 British rock fans.
Both Iron Maiden and Led Zeppelin gained a respectable 20 per cent of the vote, conducted in collaboration with heavy metal magazines Kerrang! and Metal Hammer.
In a statement, Black Sabbath said, "We are honoured and flattered to be acknowledged in a poll like this which is voted for by the fans. We thank you."